start-ver=1.4
cd-journal=joma
no-vol=56
cd-vols=
no-issue=2
article-no=
start-page=1
end-page=16
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2024
dt-pub=20241125
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Why Is Intermediate Organization Necessary?
kn-title=なぜ中間組織が必要なのか
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract= This paper challenges a fundamental question, ‘Why is an intermediate organization necessary?’ Due to transaction costs and market failures on the one hand and the limitations of organizational control mechanisms on the other hand, many‘ intermediate organizations’ are observed in the real world. How can we tackle to explain the governance mechanism considered to be‘ intermediate?’
If we are to discuss such socioeconomic orders, this paper assumes that we should not be able to link micro-level explanations and macro-level ones concerning the third mode of governance mechanisms all at once. We need to stick to the meso-level at fi rst. The theoretical elaboration since Ouchi’s(1980) discussion of clan-type governance and cumulative empirical research on industrial agglomerations have allowed us to construct a more sophisticated theory called community capital.
In effective communities, members are ‘embedded as insiders’ who serve the purpose of the community, share experiences of failures and successes, and find and deepen their common identity. This limited membership is bound by‘ mutual trust to rely on each other’ for‘ distribution of short-term risks.’ In contrast to social norms that need to be abstract enough to be widely shared, the communal norms that are concrete enough to allow the members to understand without hesitation how they should behave in localized contexts are cumulatively cultivated along socializing process. Among the norms, sense of mutual obligation to incur intermittent costs for the whole community is a crucial norm for the sustainable development of the community. However, as a practical matter, membership control, mutual trust and short-term risk allocation may serve the communities in the short run, but they do not guarantee long-term accumulation of shared capital. As a result, the limits of community capital may need to be discussed once again, especially today when market liquidity is increasing, and its failures tend to become more apparent in a variety of areas.
en-copyright=
kn-copyright=
en-aut-name=FujiiDaiji
en-aut-sei=Fujii
en-aut-mei=Daiji
kn-aut-name=藤井大児
kn-aut-sei=藤井
kn-aut-mei=大児
aut-affil-num=1
ORCID=
en-aut-name=OshimaTamako
en-aut-sei=Oshima
en-aut-mei=Tamako
kn-aut-name=大島珠子
kn-aut-sei=大島
kn-aut-mei=珠子
aut-affil-num=2
ORCID=
affil-num=1
en-affil=
kn-affil=岡山大学学術研究院ヘルスシステム統合科学学域
affil-num=2
en-affil=
kn-affil=国際医療福祉大学小田原保健医療学部看護学科
en-keyword=中間組織
kn-keyword=中間組織
en-keyword=内部組織の経済学
kn-keyword=内部組織の経済学
en-keyword=産業集積
kn-keyword=産業集積
en-keyword=コミュニティ・キャピタル
kn-keyword=コミュニティ・キャピタル
END
start-ver=1.4
cd-journal=joma
no-vol=10
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2018
dt-pub=20180323
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Newsletter from Course for Prospective Museum Workers, Faculty of Letters, Okayama University
kn-title=学芸員課程 Newsletter 第10号
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=光本順
kn-aut-sei=光本
kn-aut-mei=順
aut-affil-num=1
ORCID=
en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=三井絵莉子
kn-aut-sei=三井
kn-aut-mei=絵莉子
aut-affil-num=2
ORCID=
en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=山岡隆太
kn-aut-sei=山岡
kn-aut-mei=隆太
aut-affil-num=3
ORCID=
en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=田中陽子
kn-aut-sei=田中
kn-aut-mei=陽子
aut-affil-num=4
ORCID=
en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=泉岳志
kn-aut-sei=泉
kn-aut-mei=岳志
aut-affil-num=5
ORCID=
en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=大島友子
kn-aut-sei=大島
kn-aut-mei=友子
aut-affil-num=6
ORCID=
en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=片山由奈
kn-aut-sei=片山
kn-aut-mei=由奈
aut-affil-num=7
ORCID=
en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=額田千夏
kn-aut-sei=額田
kn-aut-mei=千夏
aut-affil-num=8
ORCID=
affil-num=1
en-affil=
kn-affil=文学部
affil-num=2
en-affil=
kn-affil=文学部 哲学芸術学専修コース
affil-num=3
en-affil=
kn-affil=文学部 歴史文化学専修コース
affil-num=4
en-affil=
kn-affil=文学部 言語文化学専修コース
affil-num=5
en-affil=
kn-affil=文学部 哲学芸術学専修コース
affil-num=6
en-affil=
kn-affil=文学部 行動科学専修コース
affil-num=7
en-affil=
kn-affil=文学部 芸術学・美術史分野
affil-num=8
en-affil=
kn-affil=文学部 歴史学・考古学分野
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2023
dt-pub=20230324
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=日本における性別と年齢ごとの性別違和の有病割合: ユトレヒト性別違和スケールを用いた人口ベースのインターネット調査
kn-title=Prevalence of Gender Dysphoria by Gender and Age in Japan: A Population-Based Internet Survey Using the Utrecht Gender Dysphoria Scale
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-aut-name=OSHIMAYoshitaka
en-aut-sei=OSHIMA
en-aut-mei=Yoshitaka
kn-aut-name=大島義孝
kn-aut-sei=大島
kn-aut-mei=義孝
aut-affil-num=1
ORCID=
affil-num=1
en-affil=Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=岡山大学大学院医歯薬学総合研究科
END
start-ver=1.4
cd-journal=joma
no-vol=134
cd-vols=
no-issue=1
article-no=
start-page=22
end-page=27
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2022
dt-pub=20220401
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Developing a scale to measure nurses' difficulty related to the treatment of gender dysphoric patients
kn-title=看護師の性別違和への関わりにくさについての尺度作成
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract= This study aimed to develop a scale to measure the perceived difficulty experienced by nurses in treating and caring for patients diagnosed with gender dysphoria and examine its reliability and validity. We developed a 26-item preliminary scale through discussions with experts in gender dysphoria treatment. We administered a questionnaire including this scale to 1,010 nurses working at Okayama University Hospital and analyzed the data of 346 nurses who had been involved in the treatment of gender dysphoria and had no missing responses.
A total of 20 items consisting of two factors, “relationship building” and “negative emotion for gender dysphoria,” were extracted by exploratory factor analysis, and we used them in the final version of the scale. Cronbach's alpha coefficient for the entire scale was 0.879, indicating a high degree of internal consistency.
However, the correlations with a communication skills scale (ENDCOREs) and the Scale of Gender Conception were limited, and the external validity could not be proven. This scale may be useful for evaluating nursing practice and educational support for nurses; however, there is room for further study on the scale validation.
en-copyright=
kn-copyright=
en-aut-name=MiyakeMaki
en-aut-sei=Miyake
en-aut-mei=Maki
kn-aut-name=三宅麻希
kn-aut-sei=三宅
kn-aut-mei=麻希
aut-affil-num=1
ORCID=
en-aut-name=OshimaYoshitaka
en-aut-sei=Oshima
en-aut-mei=Yoshitaka
kn-aut-name=大島義孝
kn-aut-sei=大島
kn-aut-mei=義孝
aut-affil-num=2
ORCID=
en-aut-name=NambaShihoko
en-aut-sei=Namba
en-aut-mei=Shihoko
kn-aut-name=難波志穂子
kn-aut-sei=難波
kn-aut-mei=志穂子
aut-affil-num=3
ORCID=
en-aut-name=MatsumotoYosuke
en-aut-sei=Matsumoto
en-aut-mei=Yosuke
kn-aut-name=松本洋輔
kn-aut-sei=松本
kn-aut-mei=洋輔
aut-affil-num=4
ORCID=
en-aut-name=HoriuchiMakiko
en-aut-sei=Horiuchi
en-aut-mei=Makiko
kn-aut-name=堀内真希子
kn-aut-sei=堀内
kn-aut-mei=真希子
aut-affil-num=5
ORCID=
en-aut-name=YamadaNorihito
en-aut-sei=Yamada
en-aut-mei=Norihito
kn-aut-name=山田了士
kn-aut-sei=山田
kn-aut-mei=了士
aut-affil-num=6
ORCID=
affil-num=1
en-affil=Department of Nursing, Okayama University Hospital
kn-affil=岡山大学病院 看護部
affil-num=2
en-affil=Department of Neuropsychiatry, Okayama University Hospital
kn-affil=岡山大学病院 精神科神経科
affil-num=3
en-affil=Department of Center for Innovative Clinical Medicine, Okayama University Hospital
kn-affil=岡山大学病院 新医療研究開発センター
affil-num=4
en-affil=Department of Gender Center, Okayama University Hospital
kn-affil=岡山大学病院 ジェンダーセンター
affil-num=5
en-affil=Department of Medical Support, Clinical Psychology section, Okayama University Hospital
kn-affil=岡山大学病院 医療技術部 臨床心理部門
affil-num=6
en-affil=Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
kn-affil=岡山大学学術研究院医歯薬学域 精神神経病態学
en-keyword=性別違和 (gender dysphoria)
kn-keyword=性別違和 (gender dysphoria)
en-keyword=関わりにくさ (difficulty in relating)
kn-keyword=関わりにくさ (difficulty in relating)
en-keyword=コミュニケーション (communication)
kn-keyword=コミュニケーション (communication)
en-keyword=性差観 (gender conception)
kn-keyword=性差観 (gender conception)
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=1
article-no=
start-page=1
end-page=14
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2020
dt-pub=20200327
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=The meaning of “independence” and “burden” from FUKUZAWA Yukichi’s viewpoint
kn-title=福沢諭吉における「独立」と「負担」 一家族・介護・老いを考える端緒として一
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-aut-name=ShimadaYuichiro
en-aut-sei=Shimada
en-aut-mei=Yuichiro
kn-aut-name=島田雄一郎
kn-aut-sei=島田
kn-aut-mei=雄一郎
aut-affil-num=1
ORCID=
affil-num=1
en-affil=National Institute of Technology, Oshima College
kn-affil=大島商船高等専門学校
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=
dt-pub=
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Canna indica L. var. flava (Roscoe) Baker
kn-title=キバナダンドク
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-keyword=カンナ科 (Cannaceae)
kn-keyword=カンナ科 (Cannaceae)
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=
dt-pub=
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Fimbristylis diphylloides Makino
kn-title=クロテンツキ
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-keyword=カヤツリグサ科 (Cyperaceae)
kn-keyword=カヤツリグサ科 (Cyperaceae)
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=
dt-pub=
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Cyperus nipponicus Franch. et Sav.
kn-title=アオガヤツリ
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-keyword=カヤツリグサ科 (Cyperaceae)
kn-keyword=カヤツリグサ科 (Cyperaceae)
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=
dt-pub=
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Cyperus difformis L.
kn-title=タマガヤツリ
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-keyword=カヤツリグサ科 (Cyperaceae)
kn-keyword=カヤツリグサ科 (Cyperaceae)
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=
dt-pub=
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Emilia sonchifolia (L.) DC. var. javanica (Burm.f.) Mattf.
kn-title=ウスベニニガナ
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-keyword=キク科 (Asteraceae)
kn-keyword=キク科 (Asteraceae)
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=
dt-pub=
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Abelmoschus moschatus Medik.
kn-title=リュウキュウトロロアオイ
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-keyword=アオイ科 (Malvaceae)
kn-keyword=アオイ科 (Malvaceae)
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2020
dt-pub=20200325
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=非弁膜症性心房細動患者におけるワルファリンと比較したダビガトランの脳卒中/全身性塞栓発症抑制効果評価
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-aut-name=OhshimaAyako
en-aut-sei=Ohshima
en-aut-mei=Ayako
kn-aut-name=大島礼子
kn-aut-sei=大島
kn-aut-mei=礼子
aut-affil-num=1
ORCID=
affil-num=1
en-affil=Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=岡山大学大学院医歯薬学総合研究科
END
start-ver=1.4
cd-journal=joma
no-vol=19
cd-vols=
no-issue=6
article-no=
start-page=566
end-page=573
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2019
dt-pub=20190227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Clinical characteristics of elderly depressive patients with low metaiodobenzylguanidine uptake
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=BACKGROUND:
Recently, depression with Lewy body pathology before the appearance of parkinsonism and cognitive dysfunction has been drawing attention. Low cardiac metaiodobenzylguanidine (MIBG) uptake is helpful for early differentiation of Lewy body disease (LBD) from late-onset psychiatric disorders even before parkinsonism or dementia appears. In this study, we used MIBG uptake as a tool in suspected LBD, and evaluated the relationship of MIBG results to clinical characteristics and depressive symptoms.
METHODS:
Fifty-two elderly inpatients with depression were included in this study. The Hamilton Depression Rating Scale (HDRS) was administered at admission, and 123 I-MIBG cardiac scintigraphy was performed. Of 52 patients, 38 had normal and 14 had reduced MIBG uptake.
RESULTS:
Correlation analyses of the late phase heart-to-mediastinum (H/M) ratio on the MIBG test and each item of the HDRS revealed that the H/M ratio was significantly correlated with scores of 'agitation', 'anxiety-somatic', and 'retardation' on the HDRS. Mean HDRS composite scores of 'somatic and psychic anxiety (Marcos)' and 'somatic anxiety/somatization factor (Pancheri)' were higher in the low uptake group than in the normal uptake group.
CONCLUSION:
Elderly patients with depression who manifested an obvious somatic anxiety tend to show low MIBG uptake, and are more likely to have Lewy body pathology.
en-copyright=
kn-copyright=
en-aut-name=TakenoshitaShintaro
en-aut-sei=Takenoshita
en-aut-mei=Shintaro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=TeradaSeishi
en-aut-sei=Terada
en-aut-mei=Seishi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=OshimaEtsuko
en-aut-sei=Oshima
en-aut-mei=Etsuko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=YamaguchiMegumi
en-aut-sei=Yamaguchi
en-aut-mei=Megumi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=HayashiSatoshi
en-aut-sei=Hayashi
en-aut-mei=Satoshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=HinotsuKenji
en-aut-sei=Hinotsu
en-aut-mei=Kenji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=EsumiSatoru
en-aut-sei=Esumi
en-aut-mei=Satoru
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=ShinyaTakayoshi
en-aut-sei=Shinya
en-aut-mei=Takayoshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
en-aut-name=YamadaNorihito
en-aut-sei=Yamada
en-aut-mei=Norihito
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=
affil-num=1
en-affil=Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
kn-affil=
affil-num=2
en-affil=Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
kn-affil=
affil-num=3
en-affil=Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
kn-affil=
affil-num=4
en-affil=Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
kn-affil=
affil-num=5
en-affil=Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
kn-affil=
affil-num=6
en-affil=Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
kn-affil=
affil-num=7
en-affil=Department of Pharmacy, Okayama University Hospital
kn-affil=
affil-num=8
en-affil=Department of Pediatric Radiology, Okayama University Hospital
kn-affil=
affil-num=9
en-affil=Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
kn-affil=
en-keyword=depression
kn-keyword=depression
en-keyword=elderly
kn-keyword=elderly
en-keyword=Lewy body disease
kn-keyword=Lewy body disease
en-keyword=metaiodobenzylguanidine
kn-keyword=metaiodobenzylguanidine
en-keyword=somatic anxiety
kn-keyword=somatic anxiety
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=
dt-pub=
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Fallopia convolvulus (L.) Á.Löve
kn-title=ソバカズラ
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-keyword=タデ科 (Polygonaceae)
kn-keyword=タデ科 (Polygonaceae)
END
start-ver=1.4
cd-journal=joma
no-vol=20
cd-vols=
no-issue=
article-no=
start-page=31
end-page=39
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2018
dt-pub=201803
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Ordinances and Human Rights in the Decentralized Society : From Japanese Constitutional Law’s Perspective
kn-title=地方分権時代の条例と人権保障のあり方 : 憲法と条例の関係に着目して
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-aut-name=OshimaKayoko
en-aut-sei=Oshima
en-aut-mei=Kayoko
kn-aut-name=大島佳代子
kn-aut-sei=大島
kn-aut-mei=佳代子
aut-affil-num=1
ORCID=
affil-num=1
en-affil=
kn-affil=同志社大学
END
start-ver=1.4
cd-journal=joma
no-vol=128
cd-vols=
no-issue=3
article-no=
start-page=191
end-page=196
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2016
dt-pub=20161201
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Our experience with the significance of collaborative medical and dental surgeries at the Head and Neck Cancer Center, Okayama University Hospital
kn-title=岡山大学病院頭頸部がんセンターにおける医科歯科合同手術の現状解析とその意義
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract= We have been collaborating with head and neck surgeons, plastic surgeons and oral surgeons in surgeries for many patients with head and neck carcinomas( especially oral carcinomas) since 2006( fiscal year 2005). The Head and Neck Cancer Center was established at Okayama University Hospital in 2012.
This Center was the first of its kind at a national university hospital in Japan.
At the Center, 174 operations on head and neck carcinomas and 96 reconstructive operations were performed in 2014( fiscal year).
Medical and dental collaborative operations have been increasing almost every year since the 2005 fiscal year. There were 45 collaborative operations in the 2014 fiscal year, which included 30 cases of bone or metal plate reconstruction or plate reinforcement of the jaws.
There were 76 medical and dental collaborative operations in the 7 years before the establishment of the Center, with a mean of 10.9 operations per year. Since the establishment of the Center, there have been 112 cases over 3 years with a mean of 37.3 operations per year. The number of surgeries has been markedly increased by the establishment of the Head and Neck Cancer Center.
en-copyright=
kn-copyright=
en-aut-name=MizukawaNobuyoshi
en-aut-sei=Mizukawa
en-aut-mei=Nobuyoshi
kn-aut-name=水川展吉
kn-aut-sei=水川
kn-aut-mei=展吉
aut-affil-num=1
ORCID=
en-aut-name=OnodaTomoo
en-aut-sei=Onoda
en-aut-mei=Tomoo
kn-aut-name=小野田友男
kn-aut-sei=小野田
kn-aut-mei=友男
aut-affil-num=2
ORCID=
en-aut-name=MatsumotoHiroshi
en-aut-sei=Matsumoto
en-aut-mei=Hiroshi
kn-aut-name=松本洋
kn-aut-sei=松本
kn-aut-mei=洋
aut-affil-num=3
ORCID=
en-aut-name=TakedaSeiko
en-aut-sei=Takeda
en-aut-mei=Seiko
kn-aut-name=武田斉子
kn-aut-sei=武田
kn-aut-mei=斉子
aut-affil-num=4
ORCID=
en-aut-name=NodaYouhei
en-aut-sei=Noda
en-aut-mei=Youhei
kn-aut-name=野田洋平
kn-aut-sei=野田
kn-aut-mei=洋平
aut-affil-num=5
ORCID=
en-aut-name=OnodaSatoshi
en-aut-sei=Onoda
en-aut-mei=Satoshi
kn-aut-name=小野田聡
kn-aut-sei=小野田
kn-aut-mei=聡
aut-affil-num=6
ORCID=
en-aut-name=FukushimaMai
en-aut-sei=Fukushima
en-aut-mei=Mai
kn-aut-name=福島麻衣
kn-aut-sei=福島
kn-aut-mei=麻衣
aut-affil-num=7
ORCID=
en-aut-name=TsumuraMunechika
en-aut-sei=Tsumura
en-aut-mei=Munechika
kn-aut-name=津村宗近
kn-aut-sei=津村
kn-aut-mei=宗近
aut-affil-num=8
ORCID=
en-aut-name=TakeuchiTetsuo
en-aut-sei=Takeuchi
en-aut-mei=Tetsuo
kn-aut-name=竹内哲男
kn-aut-sei=竹内
kn-aut-mei=哲男
aut-affil-num=9
ORCID=
en-aut-name=SugiyamaNarushi
en-aut-sei=Sugiyama
en-aut-mei=Narushi
kn-aut-name=杉山成史
kn-aut-sei=杉山
kn-aut-mei=成史
aut-affil-num=10
ORCID=
en-aut-name=KimataYoshihiro
en-aut-sei=Kimata
en-aut-mei=Yoshihiro
kn-aut-name=木股敬裕
kn-aut-sei=木股
kn-aut-mei=敬裕
aut-affil-num=11
ORCID=
affil-num=1
en-affil=Departments of Oral and Maxillofacial Reconstructive Surgery, Head and Neck Cancer Center, Okayama University Hospital
kn-affil=岡山大学病院 頭頸部がんセンター, 顎口腔再建外科
affil-num=2
en-affil=Departments of Otorhinolaryngology, Head and Neck Surgery, Head and Neck Cancer Center, Okayama University Hospital
kn-affil=岡山大学病院 頭頸部がんセンター,耳鼻咽喉・頭頸部外科
affil-num=3
en-affil=Departments of Plastic and Reconstructive Surgery, Head and Neck Cancer Center, Okayama University Hospital
kn-affil=岡山大学病院 頭頸部がんセンター,形成外科
affil-num=4
en-affil=Departments of Oral and Maxillofacial Reconstructive Surgery, Head and Neck Cancer Center, Okayama University Hospital
kn-affil=岡山大学病院 頭頸部がんセンター,顎口腔再建外科
affil-num=5
en-affil=Departments of Otorhinolaryngology, Head and Neck Surgery, Head and Neck Cancer Center, Okayama University Hospital
kn-affil=岡山大学病院 頭頸部がんセンター,耳鼻咽喉・頭頸部外科
affil-num=6
en-affil=Departments of Plastic and Reconstructive Surgery, Head and Neck Cancer Center, Okayama University Hospital
kn-affil=岡山大学病院 頭頸部がんセンター,形成外科
affil-num=7
en-affil=Departments of Oral and Maxillofacial Reconstructive Surgery, Head and Neck Cancer Center, Okayama University Hospital
kn-affil=岡山大学病院 頭頸部がんセンター,顎口腔再建外科
affil-num=8
en-affil=Departments of Otorhinolaryngology, Head and Neck Surgery, Head and Neck Cancer Center, Okayama University Hospital
kn-affil=岡山大学病院 頭頸部がんセンター,耳鼻咽喉・頭頸部外科
affil-num=9
en-affil=Departments of Dental Laboratory, Head and Neck Cancer Center, Okayama University Hospital
kn-affil=岡山大学病院 頭頸部がんセンター,歯科技工室
affil-num=10
en-affil=Departments of Plastic and Reconstructive Surgery, Head and Neck Cancer Center, Okayama University Hospital
kn-affil=岡山大学病院 頭頸部がんセンター,形成外科
affil-num=11
en-affil=Departments of Plastic and Reconstructive Surgery, Head and Neck Cancer Center, Okayama University Hospital
kn-affil=岡山大学病院 頭頸部がんセンター,形成外科
en-keyword=頭頸部がん(head and neck carcinoma)
kn-keyword=頭頸部がん(head and neck carcinoma)
en-keyword=口腔がん(oral carcinoma)
kn-keyword=口腔がん(oral carcinoma)
en-keyword=頭頸部がんセンター(Head and Neck Cancer Center)
kn-keyword=頭頸部がんセンター(Head and Neck Cancer Center)
en-keyword=医科歯科合同手術(collaborative medical and dental surgeries)
kn-keyword=医科歯科合同手術(collaborative medical and dental surgeries)
en-keyword=顎骨再建(reconstructive operations of the jaw)
kn-keyword=顎骨再建(reconstructive operations of the jaw)
END
start-ver=1.4
cd-journal=joma
no-vol=128
cd-vols=
no-issue=1
article-no=
start-page=21
end-page=25
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2016
dt-pub=20160401
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=A case of mucinous adenocarcinoma of the duodenum and literature review of 16 cases reported in Japan
kn-title=原発性十二指腸粘液癌の一例― 本邦報告16例の検討―
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract= Primary mucinous adenocarcinoma of the duodenum is rare. Here we report a case we recently encountered, and we review 16 cases reported in Japan. An 82-year-old Japanese woman was admitted to our hospital complaining of abdominal pain and heartburn. An endoscopic examination revealed a Type 2 tumor in the descending limb of the duodenum, and endoscopically obtained specimens revealed a poorly differentiated adenocarcinoma. We performed a curative pancreatoduodenectomy with lymph node resection, and the surgical specimen revealed that the duodenum was the primary site of the mucinous adenocarcinoma. The patient is currently alive > 1 year after the operation without any evidence of recurrence. Of the 16 patients reviewed, all patients had advanced tumors those depth were T3-T4. 9 patients had lymph node metastasis and 4 patients had peritoneal dissemination at the time of surgery. Since mucinous adenocarcinoma of the duodenum is often progressive cancer at a diagnosis, which is tend to have a worse prognosis than other histological types.
en-copyright=
kn-copyright=
en-aut-name=HamanoIkumi
en-aut-sei=Hamano
en-aut-mei=Ikumi
kn-aut-name=浜野郁美
kn-aut-sei=浜野
kn-aut-mei=郁美
aut-affil-num=1
ORCID=
en-aut-name=MatsumotoYusuke
en-aut-sei=Matsumoto
en-aut-mei=Yusuke
kn-aut-name=松本祐介
kn-aut-sei=松本
kn-aut-mei=祐介
aut-affil-num=2
ORCID=
en-aut-name=EndoYoshikatsu
en-aut-sei=Endo
en-aut-mei=Yoshikatsu
kn-aut-name=遠藤芳克
kn-aut-sei=遠藤
kn-aut-mei=芳克
aut-affil-num=3
ORCID=
en-aut-name=WatanabeNaoki
en-aut-sei=Watanabe
en-aut-mei=Naoki
kn-aut-name=渡邊直樹
kn-aut-sei=渡邊
kn-aut-mei=直樹
aut-affil-num=4
ORCID=
en-aut-name=KaiKyouhei
en-aut-sei=Kai
en-aut-mei=Kyouhei
kn-aut-name=甲斐恭平
kn-aut-sei=甲斐
kn-aut-mei=恭平
aut-affil-num=5
ORCID=
en-aut-name=SatoShizou
en-aut-sei=Sato
en-aut-mei=Shizou
kn-aut-name=佐藤四三
kn-aut-sei=佐藤
kn-aut-mei=四三
aut-affil-num=6
ORCID=
en-aut-name=WaniYoji
en-aut-sei=Wani
en-aut-mei=Yoji
kn-aut-name=和仁洋治
kn-aut-sei=和仁
kn-aut-mei=洋治
aut-affil-num=7
ORCID=
affil-num=1
en-affil=
kn-affil=姫路赤十字病院 外科
affil-num=2
en-affil=
kn-affil=姫路赤十字病院 外科
affil-num=3
en-affil=
kn-affil=姫路赤十字病院 外科
affil-num=4
en-affil=
kn-affil=姫路赤十字病院 外科
affil-num=5
en-affil=
kn-affil=姫路赤十字病院 外科
affil-num=6
en-affil=
kn-affil=姫路赤十字病院 外科
affil-num=7
en-affil=
kn-affil=姫路赤十字病院 病理診断科
en-keyword=原発性十二指腸癌(primary duodenal cancer)
kn-keyword=原発性十二指腸癌(primary duodenal cancer)
en-keyword=粘液癌(mucinous carcinoma)
kn-keyword=粘液癌(mucinous carcinoma)
en-keyword=膵頭十二指腸切除(pancreatoduodenectomy)
kn-keyword=膵頭十二指腸切除(pancreatoduodenectomy)
END
start-ver=1.4
cd-journal=joma
no-vol=127
cd-vols=
no-issue=3
article-no=
start-page=213
end-page=218
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2015
dt-pub=20151201
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=A case report of giant ectopic pheochromocytoma conversion therapy with radioisotope therapy and chemotherapy followed by curative resection
kn-title=術前内照射および化学療法が著効し,根治切除し得た巨大異所性褐色細胞腫の1例
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=A 46-year-old man was found to be positive for occult blood at a medical checkup and was revealed to have a 14-cm tumor on the right side of abdominal aorta by a subsequent abdominal CT scan. The endocrinology laboratory data showed elevations in the levels of serum noradrenaline, and ectopic pheochromocytoma was suspected.
The tumor was compressing the inferior vena cava and portal vein, the superior mesenteric artery and the pancreas. Since it would be difficult to cure by operation, neoadjuvant therapy was started using radioisotope therapy by I-131 metaiodobenzylguanidine (131I-MIBG) and chemotherapy (CVD therapy ; cyclophosphamide, vincristine, dacarbazine). He was treated with three courses of radioisotope therapy and 16 courses of chemotherapy, which significantly reduced the tumor size. This made radical resection possible ; we were able to avoid the merger excision of great vessels and other organs.
On pathological and immunopathological findings, the tumor was diagnosed as ectopic pheochromocytoma. Regarding the safety and curability of the treatment, neoadjuvant therapy may be useful in treating very large tumors that show invasion of other organs.
en-copyright=
kn-copyright=
en-aut-name=YasuiKazuya
en-aut-sei=Yasui
en-aut-mei=Kazuya
kn-aut-name=安井和也
kn-aut-sei=安井
kn-aut-mei=和也
aut-affil-num=1
ORCID=
en-aut-name=UmedaYuzo
en-aut-sei=Umeda
en-aut-mei=Yuzo
kn-aut-name=楳田祐三
kn-aut-sei=楳田
kn-aut-mei=祐三
aut-affil-num=2
ORCID=
en-aut-name=KumanoKenjiro
en-aut-sei=Kumano
en-aut-mei=Kenjiro
kn-aut-name=熊野健二郎
kn-aut-sei=熊野
kn-aut-mei=健二郎
aut-affil-num=3
ORCID=
en-aut-name=TabataMasahiro
en-aut-sei=Tabata
en-aut-mei=Masahiro
kn-aut-name=田端雅弘
kn-aut-sei=田端
kn-aut-mei=雅弘
aut-affil-num=4
ORCID=
en-aut-name=OtsukaFumio
en-aut-sei=Otsuka
en-aut-mei=Fumio
kn-aut-name=大塚文男
kn-aut-sei=大塚
kn-aut-mei=文男
aut-affil-num=5
ORCID=
en-aut-name=YagiTakahito
en-aut-sei=Yagi
en-aut-mei=Takahito
kn-aut-name=八木孝仁
kn-aut-sei=八木
kn-aut-mei=孝仁
aut-affil-num=6
ORCID=
en-aut-name=FujiwaraToshiyoshi
en-aut-sei=Fujiwara
en-aut-mei=Toshiyoshi
kn-aut-name=藤原俊義
kn-aut-sei=藤原
kn-aut-mei=俊義
aut-affil-num=7
ORCID=
affil-num=1
en-affil=
kn-affil=岡山大学大学院医歯薬学総合研究科
affil-num=2
en-affil=
kn-affil=岡山大学大学院医歯薬学総合研究科
affil-num=3
en-affil=
kn-affil=岡山大学大学院医歯薬学総合研究科
affil-num=4
en-affil=
kn-affil=岡山大学大学院医歯薬学総合研究科
affil-num=5
en-affil=
kn-affil=岡山大学大学院医歯薬学総合研究科
affil-num=6
en-affil=
kn-affil=岡山大学大学院医歯薬学総合研究科
affil-num=7
en-affil=
kn-affil=岡山大学大学院医歯薬学総合研究科
en-keyword=異所性褐色細胞腫(ectopic pheochromocytoma)
kn-keyword=異所性褐色細胞腫(ectopic pheochromocytoma)
en-keyword=化学療法(chemo therapy)
kn-keyword=化学療法(chemo therapy)
en-keyword=131I-MIBG
kn-keyword=131I-MIBG
END
start-ver=1.4
cd-journal=joma
no-vol=126
cd-vols=
no-issue=2
article-no=
start-page=99
end-page=102
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2014
dt-pub=20140801
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=The 2013 Incentive Award of the Okayama Medical Association in Neuroscience (2013 Niimi Prize)
kn-title=平成25年度岡山医学会賞 脳神経研究奨励賞(新見賞)
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-aut-name=OshimaEtsuko
en-aut-sei=Oshima
en-aut-mei=Etsuko
kn-aut-name=大島悦子
kn-aut-sei=大島
kn-aut-mei=悦子
aut-affil-num=1
ORCID=
affil-num=1
en-affil=
kn-affil=岡山大学病院 精神科神経科
END
start-ver=1.4
cd-journal=joma
no-vol=38
cd-vols=
no-issue=4
article-no=
start-page=1
end-page=2
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1949
dt-pub=19491010
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Studies on the biological control of plant diseases by the utilization of antagonistic organisms on the pathogenes. (2)
kn-title=拮抗微生物による作物病害防除の研究 第2報 拮抗放射状菌No.1141によるトマト靑枯病防除試驗 [附]煩草立枯病防除試驗
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-aut-name=NishikadoY.
en-aut-sei=Nishikado
en-aut-mei=Y.
kn-aut-name=西門義一
kn-aut-sei=西門
kn-aut-mei=義一
aut-affil-num=1
ORCID=
en-aut-name=OshimaT.
en-aut-sei=Oshima
en-aut-mei=T.
kn-aut-name=大島俊市
kn-aut-sei=大島
kn-aut-mei=俊市
aut-affil-num=2
ORCID=
en-aut-name=IshiiH.
en-aut-sei=Ishii
en-aut-mei=H.
kn-aut-name=石井博
kn-aut-sei=石井
kn-aut-mei=博
aut-affil-num=3
ORCID=
affil-num=1
en-affil=
kn-affil=
affil-num=2
en-affil=
kn-affil=
affil-num=3
en-affil=
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=36
cd-vols=
no-issue=
article-no=
start-page=411
end-page=415
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1944
dt-pub=19440525
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=ハナズハウの角斑病及び褐紋病
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=西門義一
kn-aut-sei=西門
kn-aut-mei=義一
aut-affil-num=1
ORCID=
en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=大島俊市
kn-aut-sei=大島
kn-aut-mei=俊市
aut-affil-num=2
ORCID=
affil-num=1
en-affil=
kn-affil=
affil-num=2
en-affil=
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=36
cd-vols=
no-issue=
article-no=
start-page=381
end-page=396
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1944
dt-pub=19440525
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=棉の黑斑病に就いて 東亞に於ける棉花の病害防除に關する研究(第二報)
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=西門義一
kn-aut-sei=西門
kn-aut-mei=義一
aut-affil-num=1
ORCID=
en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=大島俊市
kn-aut-sei=大島
kn-aut-mei=俊市
aut-affil-num=2
ORCID=
affil-num=1
en-affil=
kn-affil=
affil-num=2
en-affil=
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=47
cd-vols=
no-issue=1-2
article-no=
start-page=51
end-page=57
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1959
dt-pub=195911
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Note on the parasitic fungus, Spicaria rubido-purpurea AOKI, on the potato tuber moth, Gnorimoschema opercullela (ZELL). (Preliminary report)
kn-title=Spicaria rubido-purpurea Aokiのジャガイモガに対する寄生性(予報)
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-aut-name=OshimaS.
en-aut-sei=Oshima
en-aut-mei=S.
kn-aut-name=大島俊市
kn-aut-sei=大島
kn-aut-mei=俊市
aut-affil-num=1
ORCID=
affil-num=1
en-affil=
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=41
cd-vols=
no-issue=1
article-no=
start-page=1
end-page=8
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1953
dt-pub=19530331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=拮抗微生物による作物病害防除の硏究 第7報 Trichoderma菌の拮抗作用に関する硏究史
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=西門義一
kn-aut-sei=西門
kn-aut-mei=義一
aut-affil-num=1
ORCID=
en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=大島俊市
kn-aut-sei=大島
kn-aut-mei=俊市
aut-affil-num=2
ORCID=
en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=野田二郎
kn-aut-sei=野田
kn-aut-mei=二郎
aut-affil-num=3
ORCID=
affil-num=1
en-affil=
kn-affil=
affil-num=2
en-affil=
kn-affil=
affil-num=3
en-affil=
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=40
cd-vols=
no-issue=4
article-no=
start-page=195
end-page=204
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1953
dt-pub=19530228
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=拮抗微生物による作物病害防除の研究 第6報 放射狀菌の拮抗作用
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=西門義一
kn-aut-sei=西門
kn-aut-mei=義一
aut-affil-num=1
ORCID=
en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=大島俊市
kn-aut-sei=大島
kn-aut-mei=俊市
aut-affil-num=2
ORCID=
affil-num=1
en-affil=
kn-affil=
affil-num=2
en-affil=
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=40
cd-vols=
no-issue=1
article-no=
start-page=7
end-page=12
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1951
dt-pub=19511020
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=拮抗微生物による作物病害防除の硏究 第五報 抗菌力價に及ぼす溫度影響
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=西門義一
kn-aut-sei=西門
kn-aut-mei=義一
aut-affil-num=1
ORCID=
en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=大島俊市
kn-aut-sei=大島
kn-aut-mei=俊市
aut-affil-num=2
ORCID=
en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=森田日出男
kn-aut-sei=森田
kn-aut-mei=日出男
aut-affil-num=3
ORCID=
affil-num=1
en-affil=
kn-affil=
affil-num=2
en-affil=
kn-affil=
affil-num=3
en-affil=
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=39
cd-vols=
no-issue=4
article-no=
start-page=1
end-page=5
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1951
dt-pub=19510415
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=拮抗微生物による作物病害防除の硏究 第4報 拮抗放射狀菌堆肥培養について
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=西門義一
kn-aut-sei=西門
kn-aut-mei=義一
aut-affil-num=1
ORCID=
en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=大島俊市
kn-aut-sei=大島
kn-aut-mei=俊市
aut-affil-num=2
ORCID=
en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=森田日出男
kn-aut-sei=森田
kn-aut-mei=日出男
aut-affil-num=3
ORCID=
affil-num=1
en-affil=
kn-affil=
affil-num=2
en-affil=
kn-affil=
affil-num=3
en-affil=
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=39
cd-vols=
no-issue=1
article-no=
start-page=1
end-page=4
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1950
dt-pub=19500215
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=拮抗微生物による作物病害防除の硏究 第3報 拮抗放射狀菌の培養粉末に就て
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=西門義一
kn-aut-sei=西門
kn-aut-mei=義一
aut-affil-num=1
ORCID=
en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=大島俊市
kn-aut-sei=大島
kn-aut-mei=俊市
aut-affil-num=2
ORCID=
en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=森田日出男
kn-aut-sei=森田
kn-aut-mei=日出男
aut-affil-num=3
ORCID=
affil-num=1
en-affil=
kn-affil=
affil-num=2
en-affil=
kn-affil=
affil-num=3
en-affil=
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=38
cd-vols=
no-issue=2
article-no=
start-page=6
end-page=10
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1949
dt-pub=19490330
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=拮抗微生物利用による作物病害防除の硏究 第1報 トマト靑枯病菌Bact.solanacearumに對し拮抗作用を有する放射狀菌に就て
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=西門義一
kn-aut-sei=西門
kn-aut-mei=義一
aut-affil-num=1
ORCID=
en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=大島俊市
kn-aut-sei=大島
kn-aut-mei=俊市
aut-affil-num=2
ORCID=
en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=石井博
kn-aut-sei=石井
kn-aut-mei=博
aut-affil-num=3
ORCID=
en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=森田日出男
kn-aut-sei=森田
kn-aut-mei=日出男
aut-affil-num=4
ORCID=
affil-num=1
en-affil=
kn-affil=
affil-num=2
en-affil=
kn-affil=
affil-num=3
en-affil=
kn-affil=
affil-num=4
en-affil=
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=38
cd-vols=
no-issue=1
article-no=
start-page=30
end-page=34
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1948
dt-pub=19481110
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=病害豫防用藥劑の効果の硏究 第4報 小麥苗に於ける白澁病對する効果の檢定
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=西門義一
kn-aut-sei=西門
kn-aut-mei=義一
aut-affil-num=1
ORCID=
en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=中山隆夫
kn-aut-sei=中山
kn-aut-mei=隆夫
aut-affil-num=2
ORCID=
en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=大島俊市
kn-aut-sei=大島
kn-aut-mei=俊市
aut-affil-num=3
ORCID=
affil-num=1
en-affil=
kn-affil=
affil-num=2
en-affil=
kn-affil=
affil-num=3
en-affil=
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=37
cd-vols=
no-issue=4
article-no=
start-page=17
end-page=21
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1948
dt-pub=19480910
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=病害予防用藥剤の効果の硏究 第3報 稻苗に於ける稻胡麻葉枯病に對する豫防効果の檢定
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=西門義一
kn-aut-sei=西門
kn-aut-mei=義一
aut-affil-num=1
ORCID=
en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=中山隆夫
kn-aut-sei=中山
kn-aut-mei=隆夫
aut-affil-num=2
ORCID=
en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=大島俊市
kn-aut-sei=大島
kn-aut-mei=俊市
aut-affil-num=3
ORCID=
affil-num=1
en-affil=
kn-affil=
affil-num=2
en-affil=
kn-affil=
affil-num=3
en-affil=
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2012
dt-pub=20120323
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=アルツハイマー病におけるFrontal assessment batteryと脳灌流画像
kn-title=Frontal assessment battery and brain perfusion imaging in Alzheimer's disease
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-aut-name=OshimaEtsuko
en-aut-sei=Oshima
en-aut-mei=Etsuko
kn-aut-name=大島悦子
kn-aut-sei=大島
kn-aut-mei=悦子
aut-affil-num=1
ORCID=
affil-num=1
en-affil=
kn-affil=岡山大学
END
start-ver=1.4
cd-journal=joma
no-vol=123
cd-vols=
no-issue=2
article-no=
start-page=129
end-page=132
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2011
dt-pub=20110801
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Laparoscopic surgery for mesenteric Castleman's disease
kn-title=腹腔鏡下に摘出しえた上行結腸間膜発生のCastleman病の1例
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=We report herein a case of mesenteric Castleman's disease which was confirmed on pathology. A 60-year-old man was admitted to our hospital complaining of abdominal pain. On the physical examination, there was no palpable mass. Computed tomography findings and magnetic resonance imaging revealed a well circumscribed, lobulated round mass on the right side of the superior mesenteric vein. Laparoscopic surgery for the mesenteric tumor was carried out to obtain a definite diagnosis and treatment. In the operative field, the mass was located on the ascending colic mesentery and measured about 3 cm in size. It was solid and surrounded by a thin fibrous capsule. The histological diagnosis of the mesenteric tumor was hyaline vascular type Castleman's disease. The postoperative course of the patient was uneventful, and he was discharged on the 10th postoperative day.
en-copyright=
kn-copyright=
en-aut-name=NishieManabu
en-aut-sei=Nishie
en-aut-mei=Manabu
kn-aut-name=西江学
kn-aut-sei=西江
kn-aut-mei=学
aut-affil-num=1
ORCID=
en-aut-name=OtsukaShinya
en-aut-sei=Otsuka
en-aut-mei=Shinya
kn-aut-name=大塚真哉
kn-aut-sei=大塚
kn-aut-mei=真哉
aut-affil-num=2
ORCID=
en-aut-name=TomodaJun
en-aut-sei=Tomoda
en-aut-mei=Jun
kn-aut-name=友田純
kn-aut-sei=友田
kn-aut-mei=純
aut-affil-num=3
ORCID=
en-aut-name=FujiwaraKeishi
en-aut-sei=Fujiwara
en-aut-mei=Keishi
kn-aut-name=藤原敬士
kn-aut-sei=藤原
kn-aut-mei=敬士
aut-affil-num=4
ORCID=
affil-num=1
en-affil=
kn-affil=国立病院機構福山医療センター 外科
affil-num=2
en-affil=
kn-affil=国立病院機構福山医療センター 外科
affil-num=3
en-affil=
kn-affil=国立病院機構福山医療センター 内科
affil-num=4
en-affil=
kn-affil=光生病院 内科
en-keyword=結腸間膜 (mesocolon)
kn-keyword=結腸間膜 (mesocolon)
en-keyword=Castleman病 (Castleman's disease)
kn-keyword=Castleman病 (Castleman's disease)
en-keyword=腹腔鏡手術 (laparoscopic surgery)
kn-keyword=腹腔鏡手術 (laparoscopic surgery)
END
start-ver=1.4
cd-journal=joma
no-vol=61
cd-vols=
no-issue=6-7
article-no=
start-page=131
end-page=134
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1949
dt-pub=19490831
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=温泉の效用
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=大島良雄
kn-aut-sei=大島
kn-aut-mei=良雄
aut-affil-num=1
ORCID=
affil-num=1
en-affil=
kn-affil=岡山大學放射能泉研究所
END
start-ver=1.4
cd-journal=joma
no-vol=12
cd-vols=
no-issue=
article-no=
start-page=15
end-page=20
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1953
dt-pub=195309
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=INDICE DE NUTRITION AND OXIDATIOM-REDUCTION POTENIAL OF MINERAL WATERS
kn-title=温泉水のIndice de nutritionと酸化還元電位
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Indice de nutrition (Pech), indice de nutrition simplifié (Rimattei), membrane potential difference of human skin, and oxidation-reduction potential of several mineral watem were measured. Their balneological significance was discussed.
en-copyright=
kn-copyright=
en-aut-name=OshimaYoshio
en-aut-sei=Oshima
en-aut-mei=Yoshio
kn-aut-name=大島良雄
kn-aut-sei=大島
kn-aut-mei=良雄
aut-affil-num=1
ORCID=
affil-num=1
en-affil=
kn-affil=岡山大学温泉研究所内科
END
start-ver=1.4
cd-journal=joma
no-vol=10
cd-vols=
no-issue=
article-no=
start-page=13
end-page=16
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1953
dt-pub=195303
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=EFFECT OF THE INTERNAL USE OF MISASA (RADON SPRING), HAMAMURA (SULFATED CALCIUM SPRING) AND TOTTORI (SULFATED MURIATED SPRING) SPRING WATERS UPON THE ALIMENTARY HYPERGLYCAEMIA IN RABBITS
kn-title=三朝温泉(放射能泉),浜村温泉(含石膏食塩泉)並に鳥取温泉(含食塩芒硝泉)の飲用が食餌性過血糖に及ぼす影響
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Five years ago Morinaga reported that the intemal use of the thermal waters of Misasa promoted the action of insuline, inhibited the adrenaline hyperglycaemia and suppressed the alimentary hyperglycaemia. But the highest radon content of the waters used at that time was about 1000×10(-10) Curie units per liter. Recently a more highly radioactive spring was found in Misasa, its radon content being 3000-4000×l0(-10) Curie units per liter, though very feebly mineralized (under 0.5 g per liter) and cold. Therefore the hypoglycaemic effect of this newly discovered water was, investigated in rabbits and compared with the effects of two other thermal waters in Tottori Prefecture and of plain water as a control. Twenty cc. of ten per cent glucofoe solution in thermal waters or in plain water per kilogram of bodyweight was administered to the rabitts by stomach tube and blood sugar level was determined before, 30, 60, 120, and 180 minutes after the administration. All of the three thermal waters decreased the glycaemia significantly as compared the results with plain water control.
en-copyright=
kn-copyright=
en-aut-name=OshimaYoshio
en-aut-sei=Oshima
en-aut-mei=Yoshio
kn-aut-name=大島良雄
kn-aut-sei=大島
kn-aut-mei=良雄
aut-affil-num=1
ORCID=
affil-num=1
en-affil=
kn-affil=岡山大学温泉研究所内科
END
start-ver=1.4
cd-journal=joma
no-vol=3
cd-vols=
no-issue=
article-no=
start-page=18
end-page=20
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1950
dt-pub=19500725
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Studies of the radio-active springs. XXV The effect of Thoron spring bath on Rotter's reaction
kn-title=放射能泉に關する研究(XXV) トロン泉入浴と皮膚の色素還元能力
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=In the preliminary papers the author reported that the Thoron in thermal water passes throngh the skin and stimulates the subcutaneous connective tissue cells. Sotozono proved that the reduced ascorbic acid content in the blood increases after the Radonspring bath. Before and after thermal bath the author measured the time necessary for the complete decoloration of intradermally injected dichlorphenol-indophenol solution. Compared with the plain water bath at a same temperature, the Thoron spring bath seems to have a tendency to reduce the time necessary for the decoloration.
en-copyright=
kn-copyright=
en-aut-name=OshimaYoshio
en-aut-sei=Oshima
en-aut-mei=Yoshio
kn-aut-name=大島良雄
kn-aut-sei=大島
kn-aut-mei=良雄
aut-affil-num=1
ORCID=
affil-num=1
en-affil=
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=3
cd-vols=
no-issue=
article-no=
start-page=11
end-page=14
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1950
dt-pub=19500725
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Studies of the radio-active springs (XXII-XXIII)
kn-title=放射能泉に關する研究(XXII-XXIII)
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-aut-name=OshimaYoshio
en-aut-sei=Oshima
en-aut-mei=Yoshio
kn-aut-name=大島良雄
kn-aut-sei=大島
kn-aut-mei=良雄
aut-affil-num=1
ORCID=
affil-num=1
en-affil=
kn-affil=岡山大學放射能泉研究所内科
END
start-ver=1.4
cd-journal=joma
no-vol=13
cd-vols=
no-issue=
article-no=
start-page=36
end-page=41
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1953
dt-pub=195312
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=MEDICAL STUDIES ON CHONDROITIN SULFATE (III)
kn-title=コンドロイチン硫酸の医学的研究(第3報)
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=2-5cc. of 1% Rodium chondroitin-sulfate solution subcutaneouRly or 2cc. of 5% solution intraveneously was administered to 37 cares of painful disorders such as headache, backache or arthralgia. A marked improvement was obtained in 12 cares and a moderate result was seen in 16 cases. No definite change was proved concerning blood pressure in the patients and detoxicating effect in animal experiment.
en-copyright=
kn-copyright=
en-aut-name=OshimaYoshio
en-aut-sei=Oshima
en-aut-mei=Yoshio
kn-aut-name=大島良雄
kn-aut-sei=大島
kn-aut-mei=良雄
aut-affil-num=1
ORCID=
en-aut-name=SotozonoMasazumi
en-aut-sei=Sotozono
en-aut-mei=Masazumi
kn-aut-name=外園正純
kn-aut-sei=外園
kn-aut-mei=正純
aut-affil-num=2
ORCID=
affil-num=1
en-affil=
kn-affil=岡山大学温泉研究所内科
affil-num=2
en-affil=
kn-affil=岡山大学温泉研究所内科
END
start-ver=1.4
cd-journal=joma
no-vol=13
cd-vols=
no-issue=
article-no=
start-page=15
end-page=17
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1953
dt-pub=195312
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=STUDIES ON VITRIOL SPRINGS (4) ON THE COPPER, ZINC, NICKEL, AND COBALT CONTENTS OF BLOOD AFTER THE INTERNAL USE OF A VITRIOL WATER
kn-title=緑ばん泉に関する研究(4) : 綠ばん泉飲用後血液内微量金属元素の動きについて
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Sotozono proved that the administration of daily 20cc of Fujino Mineral Water (an acid vitriol water containing copper, zinc, nickel and cobalt) has a remarkably beneficial effect on several kinds of hypochromic anemia. It contains 9.56gms of iron, 0.007gm of zinc, 0.005gm of copper 0.001gm of nickel, and 0.006gm of cobalt in one liter. 20 - 40cc of Fujino water was diluted 5 - 10 fold with plain water and administered to the fasting patients perorally. Blood samples were taken from cubital vein before, 1, 2, 4, 6, 24, 48, and 72 hours after the intake of the vitriol water. Copper, zinc, nickel and cobalt contents of the blood samples were measured by Ashizawa' s dithizone- chromatographic method. It was shown that copper, nickel, and cobalt contents of blood rose unexpectedly high temporarily, in a manner that did not correspond to their amount in the given mineral water. So that the mobilization of copper, nickel, and cobalt in the body after the intake of the mineral IVrter was susrected. Zinc
content of blood showed no constant tendency.
en-copyright=
kn-copyright=
en-aut-name=OshimaYoshio
en-aut-sei=Oshima
en-aut-mei=Yoshio
kn-aut-name=大島良雄
kn-aut-sei=大島
kn-aut-mei=良雄
aut-affil-num=1
ORCID=
en-aut-name=AshizawaTakashi
en-aut-sei=Ashizawa
en-aut-mei=Takashi
kn-aut-name=芦沢峻
kn-aut-sei=芦沢
kn-aut-mei=峻
aut-affil-num=2
ORCID=
affil-num=1
en-affil=
kn-affil=岡山大学温泉研究所
affil-num=2
en-affil=
kn-affil=岡山大学温泉研究所
END
start-ver=1.4
cd-journal=joma
no-vol=13
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1953
dt-pub=195312
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=岡山大学温泉研究所十周年記念に際して, 回顧と所感
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=大島良雄
kn-aut-sei=大島
kn-aut-mei=良雄
aut-affil-num=1
ORCID=
affil-num=1
en-affil=
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=14
cd-vols=
no-issue=
article-no=
start-page=1
end-page=14
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1954
dt-pub=195403
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=RADON CONTENT OF HOT SPRINGS IN TOTTORI PREFECTURE, JAPAN
kn-title=鳥取県下の温泉のラドン含有量に就て
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=1. Radon content of 166 thermal waters in IWAI, TOTTORI YOSHIOKA, HAMAMURA, TOGO, SEKIGANE, MISASA, and KAlKE Hot Springs was measured by I. M. Fontactoscope in the years 1950-1951. Of which 66 samples showed a radon content over 30×10(-10) curie units per liter. Namely, 50 springs in Misasa, 6 in Sekigane, 9 in Hamamura, and one in Togo belonged to the radioactive spring in the definition by Ministry of Social Welfare. The highest Radon content (1150×10(10) curie units per liter) was recorded in Hisuino-Yu in Misasa, where five springs had a radon content over 360×10(-10) curie units per liter. 2. No marked difference was proved between the results obtained this time and the data in the former reports concerning the radon content of these thermal springs. 3. Radon content proved higher in the springs which issue from granite than in
the springs of other districts. No definite relation was proved between the radon content and water temperature. The radon content was generally high in simple thermals or in weak sodium chloride springs, low in sulfated springs and in saline springs which had a comparatively
high sulfate content.
en-copyright=
kn-copyright=
en-aut-name=OshimaYoshio
en-aut-sei=Oshima
en-aut-mei=Yoshio
kn-aut-name=大島良雄
kn-aut-sei=大島
kn-aut-mei=良雄
aut-affil-num=1
ORCID=
en-aut-name=YamadaNaoharu
en-aut-sei=Yamada
en-aut-mei=Naoharu
kn-aut-name=山田尚春
kn-aut-sei=山田
kn-aut-mei=尚春
aut-affil-num=2
ORCID=
en-aut-name=MifuneMasaaki
en-aut-sei=Mifune
en-aut-mei=Masaaki
kn-aut-name=御船政明
kn-aut-sei=御船
kn-aut-mei=政明
aut-affil-num=3
ORCID=
affil-num=1
en-affil=
kn-affil=岡山大学温泉研究所
affil-num=2
en-affil=
kn-affil=岡山大学温泉研究所
affil-num=3
en-affil=
kn-affil=岡山大学温泉研究所
END
start-ver=1.4
cd-journal=joma
no-vol=16
cd-vols=
no-issue=
article-no=
start-page=1
end-page=18
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1956
dt-pub=195601
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=REPORT OF THE CHEMICAL ANALYSIS OF MISASA HOT SPRINGS, TOTTORI PREFECTURE
kn-title=鳥取県三朝温泉調査報告
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The water samples of 55 springs of Misasa were analysed in the years 1950~1951. The temperatures of the waters ranged from 44° to 85° C. Radon content ranged from 34.1 to 2360×10(-10) curies per liter. pH 6.2~7.5. Evaporation residue: 534~1940 mg/kg. K(+) :10.4~47.3mg/kg. Na(+) : 140.4~574mg/kg. Ca(2+) : 7.56~49.06mg/kg. Mg(2+) : 0.11~15.3mg/kg.. Fe(2+) : 0.10~0.67mg/kg. Cl(-) : 138~854mg/kg. SO(4)(2-) : 29.2~187mg/kg. HCO(3)(-) : 74.8~370mg/kg. HBO(2)(-) : 1.80~19.6mg/kg. S(2)O(3)(2-) : o.62~3.69mg/kg. Radon sources seem to exist at shallow places under the ground and the radon in the thermal wacer is supposed to have been derive partly from the ground water which also contains considerable amount of radon. A close linear correlation (r=0.751) was proved between the sulfate and the chloride ion contents.
en-copyright=
kn-copyright=
en-aut-name=OshimaYoshio
en-aut-sei=Oshima
en-aut-mei=Yoshio
kn-aut-name=大島良雄
kn-aut-sei=大島
kn-aut-mei=良雄
aut-affil-num=1
ORCID=
en-aut-name=MifuneMasaaki
en-aut-sei=Mifune
en-aut-mei=Masaaki
kn-aut-name=御船政明
kn-aut-sei=御船
kn-aut-mei=政明
aut-affil-num=2
ORCID=
en-aut-name=YamadaNaoharu
en-aut-sei=Yamada
en-aut-mei=Naoharu
kn-aut-name=山田尚春
kn-aut-sei=山田
kn-aut-mei=尚春
aut-affil-num=3
ORCID=
en-aut-name=UeyamaAkiko
en-aut-sei=Ueyama
en-aut-mei=Akiko
kn-aut-name=上山昭子
kn-aut-sei=上山
kn-aut-mei=昭子
aut-affil-num=4
ORCID=
affil-num=1
en-affil=
kn-affil=岡山大学温泉研究所
affil-num=2
en-affil=
kn-affil=岡山大学温泉研究所
affil-num=3
en-affil=
kn-affil=鳥取県衛生部
affil-num=4
en-affil=
kn-affil=鳥取県衛生部
END
start-ver=1.4
cd-journal=joma
no-vol=68
cd-vols=
no-issue=3
article-no=
start-page=951
end-page=956
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2005
dt-pub=20050811
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Kinetic-spectrophotometric method for the determination of trace amounts of bromide in seawater
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
A novel simple, sensitive and rapid kinetic-spectrophotornetric method is proposed for the determination of trace amounts of bromide. The method is based on its catalytic effect on the oxidation of methylene blue (MB) by hydrogen peroxide in strongly acidic solution. The oxidation reaction is activated by large amounts of chloride and can be monitored spectrophotometrically by measuring the decrease in the absorbance of MB at 746 run. The determination of bromide is performed by a fixed-time method at the first 100 s from the initiation of the reaction. Unlike other kinetic-spectrophotornetric methods for the determination of bromide, the proposed method does not require heating the solution. Bromide can be determined in the range from 80 to 960 mu g l(-1) with the detection limit of 35 mu g l(-1). The relative standard deviation of ten replicate determination of 480 mu g l(-1) bromide was 1.4%. The influence of potential interfering ions was studied. The proposed method was satisfactorily applied to the determination of bromide in seawater without interfering effect from chloride ion.
en-copyright= kn-copyright= en-aut-name=UraisinKanchana en-aut-sei=Uraisin en-aut-mei=Kanchana kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=TakayanagiToshio en-aut-sei=Takayanagi en-aut-mei=Toshio kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=OshimaMitsuko en-aut-sei=Oshima en-aut-mei=Mitsuko kn-aut-name=大島光子 kn-aut-sei=大島 kn-aut-mei=光子 aut-affil-num=3 ORCID= en-aut-name=NacaprichaDuangjai en-aut-sei=Nacapricha en-aut-mei=Duangjai kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=4 ORCID= en-aut-name=MotomizuShoji en-aut-sei=Motomizu en-aut-mei=Shoji kn-aut-name=本水昌二 kn-aut-sei=本水 kn-aut-mei=昌二 aut-affil-num=5 ORCID= affil-num=1 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=2 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=3 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=4 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Mahidol University affil-num=5 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University en-keyword=Kinetic-spectrophotometry kn-keyword=Kinetic-spectrophotometry en-keyword=Methylene blue kn-keyword=Methylene blue en-keyword=Bromide kn-keyword=Bromide en-keyword=Seawater kn-keyword=Seawater END start-ver=1.4 cd-journal=joma no-vol=68 cd-vols= no-issue=2 article-no= start-page=388 end-page=393 dt-received= dt-revised= dt-accepted= dt-pub-year=2005 dt-pub=20051013 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=On-line preconcentration using dual mini-columns for the speciation of chromium(III) and chromium(VI) and its application to water samples as studied by inductively coupled plasma-atomic emission spectrometry en-subtitle= kn-subtitle= en-abstract= kn-abstract=On-line preconcentration system for the selective, sensitive and simultaneous determination of chromium species was investigated. Dual minicolumns containing chelating resin were utilized for the speciation and preconcentration of Cr(III) and Cr(VI) in water samples. In this system, Cr(III) was collected on first column packed with iminodiacetate resin. Cr(VI) in the effluent from the first column was reduced to Cr(III), which was collected on the second column packed with iminodiacetate resin. Hydroxyammonium chloride was examined as a potential reducing agent for Cr(VI) to Cr(III). The effects of pH, sample flow rate, column length, and interfering ions on the recoveries of Cr(III) were carefully studied. Five millilitres of a sample solution was introduced into the system. The collected species were then sequentially washed by 1 M ammonium acetate, eluted by 2 M nitric acid and measured by ICP-AES. The detection limit for Cr(III) and Cr(VI) was 0.08 and 0.15 mu g l-1, respectively. The total analysis time was about 9.4 min. The developed method was successfully applied to the speciation of chromium in river, tap water and wastewater samples with satisfied results.
en-copyright= kn-copyright= en-aut-name=SumidaTakashi en-aut-sei=Sumida en-aut-mei=Takashi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=IkenoueTamami en-aut-sei=Ikenoue en-aut-mei=Tamami kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=HamadaKazuhide en-aut-sei=Hamada en-aut-mei=Kazuhide kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= en-aut-name=SabarudinAkhmad en-aut-sei=Sabarudin en-aut-mei=Akhmad kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=4 ORCID= en-aut-name=OshimaMitsuko en-aut-sei=Oshima en-aut-mei=Mitsuko kn-aut-name=大島光子 kn-aut-sei=大島 kn-aut-mei=光子 aut-affil-num=5 ORCID= en-aut-name=MotomizuShoji en-aut-sei=Motomizu en-aut-mei=Shoji kn-aut-name=本水昌二 kn-aut-sei=本水 kn-aut-mei=昌二 aut-affil-num=6 ORCID= affil-num=1 en-affil= kn-affil=Industrial Technology Center of Kochi Prefecture affil-num=2 en-affil= kn-affil=Industrial Technology Center of Kochi Prefecture affil-num=3 en-affil= kn-affil=Industrial Technology Center of Kochi Prefecture affil-num=4 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=5 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=6 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University en-keyword=speciation kn-keyword=speciation en-keyword=chromium kn-keyword=chromium en-keyword=on-line preconcentration kn-keyword=on-line preconcentration en-keyword=ICP-AES kn-keyword=ICP-AES en-keyword=chelating resin kn-keyword=chelating resin END start-ver=1.4 cd-journal=joma no-vol=558 cd-vols= no-issue=1-2 article-no= start-page=246 end-page=253 dt-received= dt-revised= dt-accepted= dt-pub-year=2006 dt-pub=20060203 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Synthesis of a chitosan-based chelating resin and its application to the selective concentration and ultratrace determination of silver in environmental water samples en-subtitle= kn-subtitle= en-abstract= kn-abstract=A novel chelating resin using chitosan as a base material, ethylenediamine-type chitosan, has been synthesized for the first time in the present study, and applied to the collection/concentration of ultratrace amounts of silver in environmental water samples. In the present study, ultratrace amounts of silver collected on the resin were eluted and determined by ICP-MS. The resin packed in a 1 mL mini column could adsorb silver selectively and quantitatively at a flow rate of 2 mL min(-1) in the wide pH range from 1 to 8, and silver adsorbed on the resin could be easily recovered by passing 1 M nitric acid as an eluent into the column. High adsorption capacity for silver at pH 5, 0.37 mmol mL(-1) of the resin, was achieved, and t(1/2) of the adsorption is less than 5 min. The effect of chloride on the collection of silver was examined by varying chloride concentrations from 10(-4) to 0.75 M; the results showed that the present resin can be used for the collection/concentration of ultratrace amounts of silver in natural waters, as well as seawater. To ensure the accuracy and the precision of the method, CASS-4 near shore seawater reference material from the NRCC has been analyzed. This is not a certified SRM for silver, but has been used for comparative silver analysis by several groups, who report very similar results to those that are reported here. The developed method using ethylenediamine-type chitosan resin gives 0.7 pg mL(-1) of the detection limit when 50-fold enrichment was used. The proposed method was successfully applied to the determination of silver in tap, river, and seawater samples. en-copyright= kn-copyright= en-aut-name=KatarinaRosi Ketrin en-aut-sei=Katarina en-aut-mei=Rosi Ketrin kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=TakayanagiToshio en-aut-sei=Takayanagi en-aut-mei=Toshio kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=OshimaMitsuko en-aut-sei=Oshima en-aut-mei=Mitsuko kn-aut-name=大島光子 kn-aut-sei=大島 kn-aut-mei=光子 aut-affil-num=3 ORCID= en-aut-name=MotomizuShoji en-aut-sei=Motomizu en-aut-mei=Shoji kn-aut-name=本水昌二 kn-aut-sei=本水 kn-aut-mei=昌二 aut-affil-num=4 ORCID= affil-num=1 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=2 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=3 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=4 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University en-keyword=Chelating resin kn-keyword=Chelating resin en-keyword=Chitosan kn-keyword=Chitosan en-keyword=Determination of silver kn-keyword=Determination of silver en-keyword=Environmental water samples kn-keyword=Environmental water samples en-keyword=ICP-MS kn-keyword=ICP-MS END start-ver=1.4 cd-journal=joma no-vol=21 cd-vols= no-issue=3 article-no= start-page=263 end-page=268 dt-received= dt-revised= dt-accepted= dt-pub-year=2005 dt-pub=200503 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Trace and ultratrace analysis of purified water samples and hydrogen peroxide solutions for phosphorus by flow-injection method en-subtitle= kn-subtitle= en-abstract= kn-abstract=A highly sensitive fluorescence-quenching method for the determination of phosphorus based on the formation of an ion associate between molybdophosphate and Rhodamine B (RB) was developed. A simple flow-injection system coupled with a fluorescence detector was used to measure the fluorescence intensity at 560 nm and 580 nm as an excitation and an emission wavelength, respectively. The calibration graph for phosphorus showed a good linearity in the range of (0-1) x 10(-7) M (1 M = 1 mol L-1), and a detection limit of I x 10(-9) M (SIN = 3). The proposed method was successfully applied to the determination of ultratrace amounts of phosphorus in ultrapurified and purified water samples, and to the determination of trace amounts of phosphorus in commercially-available hydrogen peroxide solutions with satisfactory results. en-copyright= kn-copyright= en-aut-name=LiZenhai en-aut-sei=Li en-aut-mei=Zenhai kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=OshimaMitsuko en-aut-sei=Oshima en-aut-mei=Mitsuko kn-aut-name=大島光子 kn-aut-sei=大島 kn-aut-mei=光子 aut-affil-num=2 ORCID= en-aut-name=SabarudinAkhmad en-aut-sei=Sabarudin en-aut-mei=Akhmad kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= en-aut-name=MotomizuShoji en-aut-sei=Motomizu en-aut-mei=Shoji kn-aut-name=本水昌二 kn-aut-sei=本水 kn-aut-mei=昌二 aut-affil-num=4 ORCID= affil-num=1 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=2 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=3 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=4 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University END start-ver=1.4 cd-journal=joma no-vol=60 cd-vols= no-issue=6 article-no= start-page=1277 end-page=1285 dt-received= dt-revised= dt-accepted= dt-pub-year=2003 dt-pub=20030829 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Novel flow injection-fluorometric method for the determination of trace silicate and its application to ultrapurified water analysis en-subtitle= kn-subtitle= en-abstract= kn-abstract=
A highly sensitive fluorescence quenching method for the determination of silicate based on the formation of an ion associate between molybdosilicate and Rhodamine B (RB) in nitric acid medium was developed. A flow injection system coupled with a fluorescence detector was used for the measurement of fluorescence intensity at 560 and 580 nm as excitation and emission wavelengths, respectively. The calibration graph for Si showed a linear range of 0.1-5 ng cm(-3) with correlation coefficient of 0.9999, and the detection limit of 0.06 ng cm(-3). The proposed method was successfully applied to the determination of silicate in ultrapurified water with satisfactory results.
en-copyright= kn-copyright= en-aut-name=SabarudinAkhmad en-aut-sei=Sabarudin en-aut-mei=Akhmad kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=OshimaMitsuko en-aut-sei=Oshima en-aut-mei=Mitsuko kn-aut-name=大島光子 kn-aut-sei=大島 kn-aut-mei=光子 aut-affil-num=2 ORCID= en-aut-name=IshiiNaoe en-aut-sei=Ishii en-aut-mei=Naoe kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= en-aut-name=MotomizuShoji en-aut-sei=Motomizu en-aut-mei=Shoji kn-aut-name=本水昌二 kn-aut-sei=本水 kn-aut-mei=昌二 aut-affil-num=4 ORCID= affil-num=1 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=2 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=3 en-affil= kn-affil=Laboratory Water Division, Nihon Millipore Ltd affil-num=4 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University en-keyword=ultrapurified water kn-keyword=ultrapurified water en-keyword=ion associate kn-keyword=ion associate en-keyword=molybdosilicate kn-keyword=molybdosilicate en-keyword=rhodamine B kn-keyword=rhodamine B en-keyword=flow injection kn-keyword=flow injection en-keyword=fluorescence quenching kn-keyword=fluorescence quenching END start-ver=1.4 cd-journal=joma no-vol=581 cd-vols= no-issue=2 article-no= start-page=214 end-page=220 dt-received= dt-revised= dt-accepted= dt-pub-year=2007 dt-pub=20070109 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Functionalization of chitosan with 3,4-dihydroxybenzoic acid for the adsorption/collection of uranium in water samples and its determination by inductively coupled plasma-mass spectrometry en-subtitle= kn-subtitle= en-abstract= kn-abstract=A chitosan resin derivatized with 3,4-dihydroxybenzoic acid moiety (CCTS-DHBA resin) was newly synthesized for the collection/concentration of trace uranium by using cross-linked chitosan (CCTS) as base material, and the adsorption behavior of uranium as well as 60 elements on the resin was examined by passing the sample solutions through a mini-column packed with the resin. After the elution of the collected elements on the resin with 1M HNO3, the eluates were measured by inductively coupled plasma-mass spectrometry (ICP-MS). The CCTS-DHBA resin can adsorb several metal cations and several oxoanionic elements at appropriate pH. Among these metal ions, uranium shows an excellent adsorption behavior on this resin. Uranium as UO22+ species can be adsorbed on the resin by chelating mechanism with adsorption capacity of 330 mg g(-1) resin. Through the column treatment, the complete removal of large amounts of alkali and alkaline earth matrices without any loss of adsorption efficiency over prolonged usage were achieved with this resin. The CCTS-DHBA resin was applied to the adsorption/collection of uranium in tap water, river water and seawater samples with satisfactory results. The validation of the proposed method was carried out by analyzing uranium in the standard reference materials of SLRS-4, CASS-4, and NASS-5 after passing through the CCTS-DHBA resin, and the results showed good agreement with the certified values. en-copyright= kn-copyright= en-aut-name=SabarudinAkhmad en-aut-sei=Sabarudin en-aut-mei=Akhmad kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=OshimaMitsuko en-aut-sei=Oshima en-aut-mei=Mitsuko kn-aut-name=大島光子 kn-aut-sei=大島 kn-aut-mei=光子 aut-affil-num=2 ORCID= en-aut-name=TakayanagiToshio en-aut-sei=Takayanagi en-aut-mei=Toshio kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= en-aut-name=HakimLukman en-aut-sei=Hakim en-aut-mei=Lukman kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=4 ORCID= en-aut-name=OshitaKoji en-aut-sei=Oshita en-aut-mei=Koji kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=5 ORCID= en-aut-name=GaoYun Hua en-aut-sei=Gao en-aut-mei=Yun Hua kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=6 ORCID= en-aut-name=MotomizuShoji en-aut-sei=Motomizu en-aut-mei=Shoji kn-aut-name=本水昌二 kn-aut-sei=本水 kn-aut-mei=昌二 aut-affil-num=7 ORCID= affil-num=1 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=2 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=3 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=4 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=5 en-affil= kn-affil=Department of International Conservation Studies, Faculty of International and Industrial Studies, Kibi International University affil-num=6 en-affil= kn-affil=Technical Institute of Physics and Chemistry, Chinese Academy of Sciences affil-num=7 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University en-keyword=Chitosan resin kn-keyword=Chitosan resin en-keyword=3,4-dihydroxybenzoic acid kn-keyword=3,4-dihydroxybenzoic acid en-keyword=Uranium kn-keyword=Uranium en-keyword=Adsorption kn-keyword=Adsorption en-keyword=Water kn-keyword=Water en-keyword=Inductively coupled plasma-mass spectrometry kn-keyword=Inductively coupled plasma-mass spectrometry END start-ver=1.4 cd-journal=joma no-vol=588 cd-vols= no-issue=1 article-no= start-page=73 end-page=81 dt-received= dt-revised= dt-accepted= dt-pub-year=2007 dt-pub=20070404 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Synthesis of novel chitosan resin derivatized with serine diacetic acid moiety and its application to on-line collection/concentration of trace elements and their determination using inductively coupled plasma-atomic emission spectrometry en-subtitle= kn-subtitle= en-abstract= kn-abstract=A novel chelating resin functionalized with serine diacetic acid moiety was synthesized by using chitosan as base material, and applied to the collection/concentration of trace elements in environmental water samples, followed by the determination using inductively coupled plasma-atomic emission spectrometer (ICP-AES). The synthesized resin, crosslinked chitosan serine diacetic acid (CCTS-SDA), showed good adsorption behavior toward trace amounts of Cd, Pb, Cu, Ni, V, Ga, Sc, In, and Th in a wide pH range. Additionally, rare earth elements also can be retained on the resin at neutral pH region. The adsorbed elements can be easily eluted with 1 mol L-1 of nitric acid, and their recoveries were found to be 90-100%. The CCTS-SDA was packed in a mini-column, which was then installed in a cornputer-controlled auto-pretreatment system (Auto-Pret System) for on-line trace elements collection and determination with ICP-AES. Experimental parameters which related to the improvement of sensitivity and reproducibility were optimized. The limits of detection (LOD) for 13 elements were found to be in sub-ppb level. The proposed method with CCTS-SDA resin was successfully applied to the determination of trace elements in river water samples. The method was validated by determining a certified reference material of river water, SLRS-4. en-copyright= kn-copyright= en-aut-name=LukmanHakim en-aut-sei=Lukman en-aut-mei=Hakim kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=SabarudinAkhmad en-aut-sei=Sabarudin en-aut-mei=Akhmad kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=OshimaMitsuko en-aut-sei=Oshima en-aut-mei=Mitsuko kn-aut-name=大島光子 kn-aut-sei=大島 kn-aut-mei=光子 aut-affil-num=3 ORCID= en-aut-name=MotomizuShoji en-aut-sei=Motomizu en-aut-mei=Shoji kn-aut-name=本水昌二 kn-aut-sei=本水 kn-aut-mei=昌二 aut-affil-num=4 ORCID= affil-num=1 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=2 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=3 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=4 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University en-keyword=chelating resin kn-keyword=chelating resin en-keyword=chitosan kn-keyword=chitosan en-keyword=serine diacetic acid moiety kn-keyword=serine diacetic acid moiety en-keyword=trace elements kn-keyword=trace elements en-keyword=on-line pretreatment kn-keyword=on-line pretreatment en-keyword=computer control kn-keyword=computer control en-keyword=inductively coupled plasma-atomic emission spectrometry kn-keyword=inductively coupled plasma-atomic emission spectrometry en-keyword=SLRS-4 kn-keyword=SLRS-4 END start-ver=1.4 cd-journal=joma no-vol=532 cd-vols= no-issue=1 article-no= start-page=27 end-page=35 dt-received= dt-revised= dt-accepted= dt-pub-year=2005 dt-pub=20050507 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Slope comparison method (SCM) for the determination of trace amounts of silicate in ultrapurified water en-subtitle= kn-subtitle= en-abstract= kn-abstract=A sensitive analytical method for the determination of trace amounts of silicate in ultrapurified water was developed. The method is based on the formation of an ion associate of molybdosilicate with malachite green (MG) and the collection of the ion associate on a tiny membrane filter (diameter: 5 mm, and effective filtering diameter: 1 mm). The ion associate formed on the membrane filter is dissolved together with the membrane filter in 1 ml of methyl cellosolve (MC) and the absorbance of MC solution is measured at 627 nm by a flow injection-spectrophotometric detection technique. In this method, silicate in the original sample (ultrapurified water) is concentrated as the ion associate into a small volume of MC to get high sensitivity. As sample concentration takes place, the small amounts of silicate contained in the reagents used also become concentrated as the ion associate into MC. The original sample volumes are varied and evaporated to an identical volume. Therefore, the reagent added is fixed to the same volume. The absorbance increase linearly with increase in the original sample volume will be due only to silicate in the original samples (ultrapurified water). The resulting slopes obtained by varying the sample volumes are compared with the slope of the calibration graph, and thus named the slope comparison method (SCM). The SCM facilitates a more sensitive and accurate evaluation of silicate concentration in the samples than either common calibration method (CCM) or standard addition method (SAM) because it compensates for the influence of trace amounts of silicate contained in chemicals, reagent solution and solvent used. The calibration graph was constructed from 0 to 0.25 ng ml(-1) of Si and the detection limit was 10 pg ml(-1) (ppt) when 30 ml of samples was used. The standard deviation and relative standard deviation from six measurements of the reagent blanks were 0.0012 and 3.5%, respectively. en-copyright= kn-copyright= en-aut-name=SabarudinAkhmad en-aut-sei=Sabarudin en-aut-mei=Akhmad kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=OshimaMitsuko en-aut-sei=Oshima en-aut-mei=Mitsuko kn-aut-name=大島光子 kn-aut-sei=大島 kn-aut-mei=光子 aut-affil-num=2 ORCID= en-aut-name=MotomizuShoji en-aut-sei=Motomizu en-aut-mei=Shoji kn-aut-name=本水昌二 kn-aut-sei=本水 kn-aut-mei=昌二 aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=2 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=3 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University en-keyword=slope comparison method kn-keyword=slope comparison method en-keyword=ultrapurified water kn-keyword=ultrapurified water en-keyword=ion associate kn-keyword=ion associate en-keyword=molybdosilicate kn-keyword=molybdosilicate en-keyword=malachite green kn-keyword=malachite green en-keyword=membrane filter kn-keyword=membrane filter END start-ver=1.4 cd-journal=joma no-vol=542 cd-vols= no-issue=2 article-no= start-page=207 end-page=215 dt-received= dt-revised= dt-accepted= dt-pub-year=2005 dt-pub=20050629 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Synthesis of chitosan resin possessing 3,4-diamino benzoic acid moiety for the collection/concentration of arsenic and selenium in water samples and their measurement by inductively coupled plasma-mass spectrometry en-subtitle= kn-subtitle= en-abstract= kn-abstract=A chitosan resin functionalized with 3,4-diamino benzoic acid (CCTS-DBA resin) was newly synthesized by using a cross-linked chitosan (CCTS) as base material. The adsorption behavior of trace amounts of elements on the CCTS-DBA resin was examined by the pretreatment with a mini-column and measurement of the elements by inductively coupled plasma-Mass spectrometry (ICP-MS). Arsenic(V) could be retained on the CCTS-DBA resin at pH 3 as an oxoanion of H(2)ASO(4)(-). Selenium(VI) is strongly adsorbed at pH 2 and pH 3 as an oxoanion of SeO42-. while selenium(IV) as HSeO3- is adsorbed on the resin at pH 3. The sorption capacities are 82, 64, and 88 mg g(-1) resin for As(V), Se(IV), and Se(VI), respectively. The effect of common anions and cations on the adsorption of As(V), Se(IV), and Se(VI) were studied; there was no interference from such anionic matrices as chloride, sulfate, phosphate, and nitrate up to 20 ppm, as well as from such artificial river water matrices as Na, K, Mg, and Ca after passing samples through the mini-column containing the resin. The CCTS-DBA resin was applied to the collection of arsenic and selenium species in bottled drinking water, tap water, and river water. en-copyright= kn-copyright= en-aut-name=SabarudinAkhmad en-aut-sei=Sabarudin en-aut-mei=Akhmad kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=OshitaKoji en-aut-sei=Oshita en-aut-mei=Koji kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=OshimaMitsuko en-aut-sei=Oshima en-aut-mei=Mitsuko kn-aut-name=大島光子 kn-aut-sei=大島 kn-aut-mei=光子 aut-affil-num=3 ORCID= en-aut-name=MotomizuShoji en-aut-sei=Motomizu en-aut-mei=Shoji kn-aut-name=本水昌二 kn-aut-sei=本水 kn-aut-mei=昌二 aut-affil-num=4 ORCID= affil-num=1 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=2 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=3 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=4 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University en-keyword=Cross-linked chitosan kn-keyword=Cross-linked chitosan en-keyword=3,4-diamino benzoic acid kn-keyword=3,4-diamino benzoic acid en-keyword=Arsenic kn-keyword=Arsenic en-keyword=Selenium kn-keyword=Selenium en-keyword=ICP-MS kn-keyword=ICP-MS END start-ver=1.4 cd-journal=joma no-vol=72 cd-vols= no-issue=5 article-no= start-page=1675 end-page=1680 dt-received= dt-revised= dt-accepted= dt-pub-year=2007 dt-pub=20070201 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Flow-Injection Spectrofluorometric Determination of Trace Amounts of Formaldehyde in Water after Derivatization with Acetoacetanilide en-subtitle= kn-subtitle= en-abstract= kn-abstract=A novel fluorophotometric method for formaldehyde determination in environmental waters was developed: the method does not require any enrichment procedures. A flow-injection analysis method for the spectrofluorometric determination of formaldehyde in waters, which is based on the reaction of formaldehyde with acetoacetanilide and ammonia, is proposed. The proposed method shows a good linearity from 0.50 to 40 x 10(-7) M, and the limit of detection (LOD) of 3 x 10(-9) M (0.09 ppb) is achievable. The sample throughput is 15 h(-1). One of the main advantages in the proposed method is that the reaction can be carried out at room temperature without any heating system. The effect of various interferences possibly present in the real water samples was investigated. Most cations and anions, as well as organic compounds, do not interfere with the determination of formaldehyde in environmental water samples. The proposed method is very simple, rapid, less expensive, and highly sensitive, and can be applied to the environmental water samples, such as rain, tap water and river water, at low concentration levels without any enrichment procedure.
en-copyright= kn-copyright= en-aut-name=LiQiong en-aut-sei=Li en-aut-mei=Qiong kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=OshimaMitsuko en-aut-sei=Oshima en-aut-mei=Mitsuko kn-aut-name=大島光子 kn-aut-sei=大島 kn-aut-mei=光子 aut-affil-num=2 ORCID= en-aut-name=MotomizuShoji en-aut-sei=Motomizu en-aut-mei=Shoji kn-aut-name=本水昌二 kn-aut-sei=本水 kn-aut-mei=昌二 aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=2 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=3 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University en-keyword=Spectrofluorometric kn-keyword=Spectrofluorometric en-keyword=Water samples kn-keyword=Water samples en-keyword=Flow-injection kn-keyword=Flow-injection en-keyword=Formaldehyde determination kn-keyword=Formaldehyde determination en-keyword=Acetoacetanilide kn-keyword=Acetoacetanilide END start-ver=1.4 cd-journal=joma no-vol=76 cd-vols= no-issue=5 article-no= start-page=1256 end-page=1260 dt-received= dt-revised= dt-accepted= dt-pub-year=2008 dt-pub=20080523 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Synthesis of chitosan-based resins modified with tris(2-aminoethyl)amine moiety and its application to collection/concentration and determination of trace mercury by inductively coupled plasma atomic emission spectrometry en-subtitle= kn-subtitle= en-abstract= kn-abstract=A novel chitosan-based chelating resin modified with tris(2-aminoethyl)amine moiety (CCTS-TAA) was synthesized. and its characteristics in the collection/concentration of mercury was examined. The synthesized resin showed good adsorption toward mercury in a wide pH range, and the adsorbed mercury can be easily eluted by using 2 M HNO3 without any addition of complexing agent. The resin was then packed in a mini-column and the mini-column was installed on a computer-controlled automated-pretreatment (Auto-Pret) system coupled with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) for on-line mercury collection and determination at trace level.
en-copyright= kn-copyright= en-aut-name=HakimLukman en-aut-sei=Hakim en-aut-mei=Lukman kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=SabarudinAkhmad en-aut-sei=Sabarudin en-aut-mei=Akhmad kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=OshitaKoji en-aut-sei=Oshita en-aut-mei=Koji kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= en-aut-name=OshimaMitsuko en-aut-sei=Oshima en-aut-mei=Mitsuko kn-aut-name=大島光子 kn-aut-sei=大島 kn-aut-mei=光子 aut-affil-num=4 ORCID= en-aut-name=MotomizuShoji en-aut-sei=Motomizu en-aut-mei=Shoji kn-aut-name=本水昌二 kn-aut-sei=本水 kn-aut-mei=昌二 aut-affil-num=5 ORCID= affil-num=1 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=2 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=3 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=4 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=5 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University en-keyword=resin kn-keyword=resin en-keyword=chitosan kn-keyword=chitosan en-keyword=tris(2-aminoethyl)amine moiety kn-keyword=tris(2-aminoethyl)amine moiety en-keyword=mercury kn-keyword=mercury en-keyword=on-line pretreatment kn-keyword=on-line pretreatment en-keyword=computer control kn-keyword=computer control en-keyword=inductively coupled plasma-atomic kn-keyword=inductively coupled plasma-atomic en-keyword=emission spectrometry kn-keyword=emission spectrometry END start-ver=1.4 cd-journal=joma no-vol=1069 cd-vols= no-issue=2 article-no= start-page= end-page= dt-received= dt-revised= dt-accepted= dt-pub-year=2005 dt-pub=20050502 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Capillary zone electrophoretic studies of ion association between inorganic anions and tetraalkylammonium ions in aqueous-dioxane media en-subtitle= kn-subtitle= en-abstract= kn-abstract=Ion association between inorganic anions and symmetrical tetraalkylammonium ions, R4N+ (R = Me, Et, Pr, n-Bu, n-Am, and 2-methyl butyl {isoamyl = iAm}) was investigated using ordinary silica capillary by capillary zone electrophoresis. An improved version of the Williams-Vigh method was used for the first time to measure the mobilities of the inorganic anions. Plots of log K-ass against log dielectric constant in various media, revealed a smaller change in K-ass compared to dielectric constant. These plots suggest that the Bjerrum's equation is inadequate in accounting for the associations of ions in a CZE setup.
en-copyright= kn-copyright= en-aut-name=MbunaJulius en-aut-sei=Mbuna en-aut-mei=Julius kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=TakayanagiToshio en-aut-sei=Takayanagi en-aut-mei=Toshio kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=OshimaMitsuko en-aut-sei=Oshima en-aut-mei=Mitsuko kn-aut-name=大島光子 kn-aut-sei=大島 kn-aut-mei=光子 aut-affil-num=3 ORCID= en-aut-name=MotomizuShoji en-aut-sei=Motomizu en-aut-mei=Shoji kn-aut-name=本水昌二 kn-aut-sei=本水 kn-aut-mei=昌二 aut-affil-num=4 ORCID= affil-num=1 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=2 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=3 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=4 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University en-keyword=aqueous-dioxane media kn-keyword=aqueous-dioxane media en-keyword=Williams-Vigh method kn-keyword=Williams-Vigh method en-keyword=ion association kn-keyword=ion association en-keyword=capillary zone electrophoresis kn-keyword=capillary zone electrophoresis END start-ver=1.4 cd-journal=joma no-vol=74 cd-vols= no-issue=4 article-no= start-page=977 end-page=985 dt-received= dt-revised= dt-accepted= dt-pub-year=2007 dt-pub=20070819 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Synthesis of cross-linked chitosan functionalized with threonine moiety and its application to on-line collection/concentration and determination of Mo, V and Cu en-subtitle= kn-subtitle= en-abstract= kn-abstract=A novel chitosan-based resin functionalized with threonine moiety was synthesized, and applied to the collection/concentration of Mo, V and Cu in environmental water samples, followed by their determination using inductively coupled plasma-atomic emission spectrometer (ICP-AES). The synthesized resin, cross-linked chitosan-threonine (CCTS-Thr), showed good adsorption behavior toward trace amounts of Mo, V and Cu in a wide pH range. The adsorbed elements can be easily eluted using 2 mol L-1 of nitric acid, and their recoveries were found to be 90-100%. The CCTS-Thr was packed in a mini-column, which was then installed in a computer-controlled auto-pretreatment system (Auto-Pret System) for on-line trace elements collection and determination by ICP-AES. Experimental parameters related to the improvement of sensitivity and reproducibility were optimized. The limits of detection (LODs) for target metals were found to be in sub-ppb level. The proposed method with CCTS-Thr resin was successfully applied to the determination of Mo, V and Cu in environmental water samples. The recovery test showed that common matrices which exist in environmental water samples did not interfere with the determination.
en-copyright= kn-copyright= en-aut-name=HakimLukman en-aut-sei=Hakim en-aut-mei=Lukman kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=SabarudinAkhmad en-aut-sei=Sabarudin en-aut-mei=Akhmad kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=OshitaKoji en-aut-sei=Oshita en-aut-mei=Koji kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= en-aut-name=OshimaMitsuko en-aut-sei=Oshima en-aut-mei=Mitsuko kn-aut-name=大島光子 kn-aut-sei=大島 kn-aut-mei=光子 aut-affil-num=4 ORCID= en-aut-name=MotomizuShoji en-aut-sei=Motomizu en-aut-mei=Shoji kn-aut-name=本水昌二 kn-aut-sei=本水 kn-aut-mei=昌二 aut-affil-num=5 ORCID= affil-num=1 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=2 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=3 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=4 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=5 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University en-keyword=resin kn-keyword=resin en-keyword=chitosan kn-keyword=chitosan en-keyword=threonine moiety kn-keyword=threonine moiety en-keyword=molybdenum kn-keyword=molybdenum en-keyword=vanadium kn-keyword=vanadium en-keyword=copper kn-keyword=copper en-keyword=on-line pretreatment kn-keyword=on-line pretreatment en-keyword=computer control kn-keyword=computer control en-keyword=inductively coupled plasma-atomic emission spectrometry kn-keyword=inductively coupled plasma-atomic emission spectrometry END start-ver=1.4 cd-journal=joma no-vol=73 cd-vols= no-issue=5 article-no= start-page=831 end-page=837 dt-received= dt-revised= dt-accepted= dt-pub-year=2007 dt-pub=20070522 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Functionalization of chitosan with 3-nitro-4-amino benzoic acid moiety and its application to the collection/concentration of molybdenum in environmental water samples en-subtitle= kn-subtitle= en-abstract= kn-abstract=A chitosan resin functionalized with 3-nitro-4-amino benzoic acid moiety (CCTS-NABA resin) was newly synthesized for the collection/concentration of trace molybdenum by using cross-linked chitosan (CCTS) as base material. The carboxyl group of the moiety was chemically attached to amino group of cross-linked chitosan through amide bond formation. The adsorption behavior of molybdenum as well as other 60 elements on the resin was examined by passing the sample solutions through a mini-column packed with the resin. After the elution of the elements collected on the resin with 1 M HNO3, the eluates were analyzed by inductively coupled plasma-mass spectrometry (ICP-MS) and atomic emission spectrometry (ICP-AES).
The CCTS-NABA resin can adsorb several metal ions, such as vanadium, gallium, arsenic, selenium, silver, bismuth, thorium, tungsten, tin, tellurium, copper, and molybdenum at appropriate pHs. Among these metal ions, only molybdenum could be adsorbed almost completely on the resin at acidic regions. An excellent selectivity toward molybdenum could be obtained at pH 3-4. The adsorption capacity of CCTS-NABA resin for Mo(VI) was 380 mg g(-1) resin. Through the column pretreatment, alkali and alkaline earth metals in river water and seawater samples were successfully removed.
The CCTS-NABA resin was applied to the adsorption/collection of molybdenum in river water and seawater samples. The concentrations of molybdenum in river water samples were found in the range of 0.84 and 0.95 ppb (ng g(-1)), whereas molybdenum in seawater was about 9 ppb. The validation of the proposed method was carried out by determining molybdenum in the certified reference materials of SLRS-4, CASS-4, and NASS-5 after passing through the CCTS-NABA resin; the results showed good agreement with the certified-values.
A novel spectrophotometric reaction system was developed for the determination of nitrite as well as nitrate in water samples, and was applied to a flow-injection analysis (FIA). The spectrophotometric flow-injection system coupled with a copperised cadmium reductor column was proposed. The detection was based on the nitrosation reaction between nitrite ion and phloroglucinol (1,3,5-trihydroxybenzene), a commercially available phenolic compound. Sample injected into a carrier stream was split into two streams at the Y-shaped connector. One of the streams merged directly and reacted with the reagent stream: nitrite ion in the samples was detected. The other stream was passed through the copperised cadmium reductor column, where the reduction of nitrate to nitrite occurred, and the sample zone was then mixed with the reagent stream and passed through the detector: the sum of nitrate and nitrite was detected. The optimised conditions allow a linear calibration range of 0.03-0.30 mug NO2--N ml(-1) and 0.10-1.00 mug NO3--N ml(-1). The detection limits for nitrite and nitrate, defined as three times the standard deviation of measured blanks are 2.9 ng NO2--N ml(-1) and 2.3 ng NO3--N ml(-1), respectively. Up to 20 samples can be analyzed per hour with a relative standard deviation of less than 1.5%. The proposed method could be applied successfully to the simultaneous determination of nitrite and nitrate in water samples.
en-copyright= kn-copyright= en-aut-name=BurakhamRodjana en-aut-sei=Burakham en-aut-mei=Rodjana kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=OshimaMitsuko en-aut-sei=Oshima en-aut-mei=Mitsuko kn-aut-name=大島光子 kn-aut-sei=大島 kn-aut-mei=光子 aut-affil-num=2 ORCID= en-aut-name=GrudpanKate en-aut-sei=Grudpan en-aut-mei=Kate kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= en-aut-name=MotomizuShoji en-aut-sei=Motomizu en-aut-mei=Shoji kn-aut-name=本水昌二 kn-aut-sei=本水 kn-aut-mei=昌二 aut-affil-num=4 ORCID= affil-num=1 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Chiang Mai University affil-num=2 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=3 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Chiang Mai University affil-num=4 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University en-keyword=Flow-injection analysis kn-keyword=Flow-injection analysis en-keyword=Phloroglucinol kn-keyword=Phloroglucinol en-keyword=Nitrite kn-keyword=Nitrite en-keyword=Nitrate kn-keyword=Nitrate en-keyword=Simultaneous determination kn-keyword=Simultaneous determination END start-ver=1.4 cd-journal=joma no-vol=72 cd-vols= no-issue=5 article-no= start-page=1609 end-page=1617 dt-received= dt-revised= dt-accepted= dt-pub-year=2007 dt-pub=20070118 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Sequential-injection on-line preconcentration using chitosan resin functionalized with 2-amino-5-hydroxy benzoic acid for the determination of trace elements in environmental water samples by inductively coupled plasma-atomic emission spectrometry en-subtitle= kn-subtitle= en-abstract= kn-abstract=A new chelating resin using chitosan as a base material was synthesized. Functional moiety of 2-amino-5-hydroxy benzoic acid (AHBA) was chemically bonded to the amino group of cross-linked chitosan (CCTS) through the arm of chloromethyloxirane (CCTS-AHBA resin). Several elements, such as Ag, Be, Cd, Co, Cu, Ni, Ph, U, V, and rare earth elements (REEs), could be adsorbed on the resin. To use the resin for on-line pretreatment, the resin was packed in a mini-column and installed into a sequential-injection/automated pretreatment system (Auto-Pret System) coupled with inductively coupled plasma-atomic emission spectrometry (ICP-AES). The sequential-injection/automated pretreatment system was a laboratory-assembled, and the program was written using Visual Basic software. This system can provide easy operation procedures, less reagent consumption, as well as less waste production. Experimental variables considered as effective factors in the improvement sensitivity, such as an eluent concentration, a sample and an eluent flow rate, pH of samples, and air-sandwiched eluent were carefully optimized. The proposed system provides excellent on-line collection efficiency, as well as high concentration factors of analytes in water samples, which results in highly sensitive detection of ultra-trace and trace analysis. Under the optimal conditions, the detection limits of 24 elements examined are in the range from ppt to sub-ppb levels. The proposed method was validated by using the standard reference material of a river water, SLRS-4, and the applicability was further demonstrated to the on-line collection/concentration of trace elements, such as Ag, Be, Cd, Co, Cu, Ni, Ph, U, V, and REEs in water samples.
en-copyright= kn-copyright= en-aut-name=SabarudinAkhmad en-aut-sei=Sabarudin en-aut-mei=Akhmad kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=LenghorNarong en-aut-sei=Lenghor en-aut-mei=Narong kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=OshimaMitsuko en-aut-sei=Oshima en-aut-mei=Mitsuko kn-aut-name=大島光子 kn-aut-sei=大島 kn-aut-mei=光子 aut-affil-num=3 ORCID= en-aut-name=HakimLukman en-aut-sei=Hakim en-aut-mei=Lukman kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=4 ORCID= en-aut-name=TakayanagiToshio en-aut-sei=Takayanagi en-aut-mei=Toshio kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=5 ORCID= en-aut-name=GaoYun-Hua en-aut-sei=Gao en-aut-mei=Yun-Hua kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=6 ORCID= en-aut-name=MotomizuShoji en-aut-sei=Motomizu en-aut-mei=Shoji kn-aut-name=本水昌二 kn-aut-sei=本水 kn-aut-mei=昌二 aut-affil-num=7 ORCID= affil-num=1 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=2 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=3 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=4 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=5 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=6 en-affil= kn-affil=Technical Institute of Physics and Chemistry, Chinese Academy of Sciences (CAS) affil-num=7 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University en-keyword=sequential-injection kn-keyword=sequential-injection en-keyword=on-line preconcentration kn-keyword=on-line preconcentration en-keyword=trace elements kn-keyword=trace elements en-keyword=ICP-AES kn-keyword=ICP-AES en-keyword=chitosan resin kn-keyword=chitosan resin END start-ver=1.4 cd-journal=joma no-vol=23 cd-vols= no-issue=12 article-no= start-page=1431 end-page=1434 dt-received= dt-revised= dt-accepted= dt-pub-year=2007 dt-pub=20071211 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Adsorption behavior of cationic and anionic species on chitosan resins possessing amino acid moieties en-subtitle= kn-subtitle= en-abstract= kn-abstract=Chitosan resins modified with amino acids, such as glycine, valine, leucine, and serine, were synthesized for investigating the adsorption behavior of cationic and anionic species, and showed good abilities for the adsorption of trace elements in aquatic media as follows: glycine for lanthanoids at pH 7, leucine for molybdenum at pH 1 - 5, serine for uranium at pH 2 - 7, and amino acids for bismuth at pH 1 - 7. Cationic and anionic species could be adsorbed by a chelating mechanism and an anion-exchange mechanism.
en-copyright= kn-copyright= en-aut-name=OshitaKoji en-aut-sei=Oshita en-aut-mei=Koji kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=TakayanagiToshio en-aut-sei=Takayanagi en-aut-mei=Toshio kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=OshimaMitsuko en-aut-sei=Oshima en-aut-mei=Mitsuko kn-aut-name=大島光子 kn-aut-sei=大島 kn-aut-mei=光子 aut-affil-num=3 ORCID= en-aut-name=MotomizuShoji en-aut-sei=Motomizu en-aut-mei=Shoji kn-aut-name=本水昌二 kn-aut-sei=本水 kn-aut-mei=昌二 aut-affil-num=4 ORCID= affil-num=1 en-affil= kn-affil=Department of International Conservation Studies for Cultural Properties, Faculty of Cultural Properties, Kibi International University affil-num=2 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=3 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=4 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University en-keyword=CHEMICALLY-MODIFIED CHITOSAN kn-keyword=CHEMICALLY-MODIFIED CHITOSAN en-keyword=SELECTIVE ADSORPTION kn-keyword=SELECTIVE ADSORPTION en-keyword=ICP-MS kn-keyword=ICP-MS en-keyword=COLUMN COLLECTION/CONCENTRATION kn-keyword=COLUMN COLLECTION/CONCENTRATION en-keyword=COMPLEXANE TYPES kn-keyword=COMPLEXANE TYPES en-keyword=PRECIOUS METALS kn-keyword=PRECIOUS METALS en-keyword=DERIVATIVES kn-keyword=DERIVATIVES en-keyword=ION kn-keyword=ION en-keyword=COPRECIPITATION kn-keyword=COPRECIPITATION en-keyword=COPPER(II) kn-keyword=COPPER(II) END start-ver=1.4 cd-journal=joma no-vol=23 cd-vols= no-issue=10 article-no= start-page=1203 end-page=1208 dt-received= dt-revised= dt-accepted= dt-pub-year=2007 dt-pub=20071010 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Synthesis of cross-linked chitosan modified with the glycine moiety for the collection/concentration of bismuth in aquatic samples for ICP-MS determination en-subtitle= kn-subtitle= en-abstract= kn-abstract=A chelating resin, cross-linked chitosan modified with the glycine moiety (glycine-type chitosan resin), was developed for the collection and concentration of bismuth in aquatic samples for ICP-MS measurements. The adsorption behavior of bismuth and 55 elements on glycine-type chitosan resin was systematically examined by passing a sample solution containing 56 elements through a mini-column packed with the resin (wet volume; I ml). After eluting the elements adsorbed on the resin with nitric acid, the eluates were measured by ICP-MS. The glycine-type chitosan resin could adsorb several cations by a chelating mechanism and several oxoanions by an anion-exchange mechanism. Especially, the resin could adsorb almost 100% Bi(III) over a wide pH region from pH 2 to 6. Bismuth could be strongly adsorbed at pH 3, and eluted quantitatively with 10 ml of 3 M nitric acid. A column pretreatment method with the glycine-type chitosan resin was used prior to removal of high concentrations of matrices in a seawater sample and the preconcentration of trace bismuth in river water samples for ICP-MS measurements. The column pretreatment method was also applied to the determination of bismuth in real samples by ICP-MS. The LOD of bismuth was 0.1 pg ml(-1) by 10-fold column preconcentration for ICP-MS measurements. The analytical results for bismuth in sea and river water samples by ICP-MS were 22.9 +/- 0.5 pg ml(-1) (RSD, 2.2%) and 2.08 +/- 0.05 pg ml(-1) (RSD, 2.4%), respectively.
en-copyright= kn-copyright= en-aut-name=OshitaKoji en-aut-sei=Oshita en-aut-mei=Koji kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=NoguchiOsamu en-aut-sei=Noguchi en-aut-mei=Osamu kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=OshimaMitsuko en-aut-sei=Oshima en-aut-mei=Mitsuko kn-aut-name=大島光子 kn-aut-sei=大島 kn-aut-mei=光子 aut-affil-num=3 ORCID= en-aut-name=MotomizuShoji en-aut-sei=Motomizu en-aut-mei=Shoji kn-aut-name=本水昌二 kn-aut-sei=本水 kn-aut-mei=昌二 aut-affil-num=4 ORCID= affil-num=1 en-affil= kn-affil=Department of International Conservation Studies for Cultural Properties, Faculty of Cultural Properties, Kibi International University affil-num=2 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=3 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=4 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University END start-ver=1.4 cd-journal=joma no-vol=66 cd-vols= no-issue=1 article-no= start-page=136 end-page=144 dt-received= dt-revised= dt-accepted= dt-pub-year=2004 dt-pub=20041208 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Synthesis of cross-linked chitosan possessing N-methyl-D-glucamine moiety (CCTS-NMDG) for adsorption/concentration of boron in water samples and its accurate measurement by ICP-MS and ICP-AES en-subtitle= kn-subtitle= en-abstract= kn-abstract=A chitosan resin derivatized with N-methyl-(D)-glucamine (CCTS-NMDG) was synthesized by using a cross-linked chitosan (CCTS) as base material. The N-methyl-D-glucamine (NMDG) moiety was attached to the amino group of CCTS through the arm of chloromethyloxirane. The adsorption behavior of 59 elements on the synthesized resin was systematically examined by using the resin packed in a mini-column, passing water samples through it and measuring the adsorbed elements in eluates by ICP-MS. The CCTS-NMDG resin shows high ability in boron sorption with the capacity of 0.61 mmol ml(-1) (= 2.1 mmol g(-1)). The sorption kinetics of this resin was faster than that of the commercially available resins. Other advantages of the synthesized resin are: (1) quantitative collection of boron at neutral pH regions; (2) complete removal of large amounts of matrices; (3) no loss of efficiency over prolonged usage; (4) effective collection of boron in wide range concentration using a mini column containing 1 ml resin; (5) complete elution of boron with 1 mol 1(-1) nitric acid. The resin was applied to the collection/concentration of boron in water samples. Boron in tap water and river water was found to be in the range of 6-8 mu g 1(-1). The limit of detection (LOD) of boron after pretreatment with CCTS-NMDG resin and measurement by ICP-MS was 0.07 mu g 1(-1) and the limit of quantification (LOQ) was 0. 14 mu g 1(-1) when the volume of each sample and eluent was 10 ml.
en-copyright= kn-copyright= en-aut-name=SabarudinAkhmad en-aut-sei=Sabarudin en-aut-mei=Akhmad kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=OshitaKoji en-aut-sei=Oshita en-aut-mei=Koji kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=OshimaMitsuko en-aut-sei=Oshima en-aut-mei=Mitsuko kn-aut-name=大島光子 kn-aut-sei=大島 kn-aut-mei=光子 aut-affil-num=3 ORCID= en-aut-name=MotomizuShoji en-aut-sei=Motomizu en-aut-mei=Shoji kn-aut-name=本水昌二 kn-aut-sei=本水 kn-aut-mei=昌二 aut-affil-num=4 ORCID= affil-num=1 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=2 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=3 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=4 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University en-keyword=chitosan resin kn-keyword=chitosan resin en-keyword=N-methyl-D-glucamine kn-keyword=N-methyl-D-glucamine en-keyword=boron kn-keyword=boron en-keyword=adsorption kn-keyword=adsorption en-keyword=ICP-MS/AES kn-keyword=ICP-MS/AES END start-ver=1.4 cd-journal=joma no-vol=612 cd-vols= no-issue=2 article-no= start-page=165 end-page=172 dt-received= dt-revised= dt-accepted= dt-pub-year=2008 dt-pub=200804 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Development of novel detection reagent for simple and sensitive determination of trace amounts of formaldehyde and its application to flow injection spectrophotometric analysis en-subtitle= kn-subtitle= en-abstract= kn-abstract=In this paper, a novel detection reagent for formaldehyde determination is proposed, and is applied to a simple and highly sensitive flow injection method for the spectrophotometric determination of formaldehyde. The method is based on the reaction of formaldehyde with methyl acetoacetate in the presence of ammonia. The increase in the absorbance of the reaction product was measured at 375 nm. An inexpensive light emitting diode (LED)based UV detector (375 nm) was, for the first time, used. Under the optimized experimental conditions, formaldehyde in an aqueous solution was determined over the concentration range from 0.25 to 20.0 x 10(-6) M with a liner calibration graph; the limit of detection (LOD) of 5 x 10(-8) M (1.5 mu g L-1) was possible. The relative standard deviation of 12 replicate measurements of 5 X 10(-6) M formaldehyde was 1.2%. Maximum sampling throughput was about 21 samples/h. The effect of potential interferences such as metals, organic compounds and other aldehyde was also examined. The analytical performance for formaldehyde determination was compared with those obtained by the conventional acetylacetone method, which uses visible absorption spectrophotometry. Finally, the proposed method was successfully applied to the determination of formaldehyde in natural water samples. en-copyright= kn-copyright= en-aut-name=LiQiong en-aut-sei=Li en-aut-mei=Qiong kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=SritharathikhumPiyanete en-aut-sei=Sritharathikhum en-aut-mei=Piyanete kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=OshimaMitsuko en-aut-sei=Oshima en-aut-mei=Mitsuko kn-aut-name=大島光子 kn-aut-sei=大島 kn-aut-mei=光子 aut-affil-num=3 ORCID= en-aut-name=MotomizuShoji en-aut-sei=Motomizu en-aut-mei=Shoji kn-aut-name=本水昌二 kn-aut-sei=本水 kn-aut-mei=昌二 aut-affil-num=4 ORCID= affil-num=1 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=2 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=3 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=4 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University en-keyword=Flow injection kn-keyword=Flow injection en-keyword=Formaldehyde determination kn-keyword=Formaldehyde determination en-keyword=Spectrophotometry kn-keyword=Spectrophotometry en-keyword=Methyl acetoacetate kn-keyword=Methyl acetoacetate en-keyword=UV-light emitting diode (LED) kn-keyword=UV-light emitting diode (LED) END start-ver=1.4 cd-journal=joma no-vol=64 cd-vols= no-issue=5 article-no= start-page=1147 end-page=1150 dt-received= dt-revised= dt-accepted= dt-pub-year=2004 dt-pub=20040611 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Flow injection spectrophotometry coupled with a crushed barium sulfate reactor column for the determination of sulfate ion in water samples en-subtitle= kn-subtitle= en-abstract= kn-abstract=A new type of a reactor column, a crushed BaSO4 reactor column used for the flow injection spectrophotometric determination of sulfate ion using the exchange reaction of sulfate ion and barium-dimethylsulfonazo III is proposed. The column is very simple and economical. It can be continuously used for 8 h before washing with water for repeated usage of at least 1 month. The procedure is sensitive. Application to various water samples was demonstrated.
en-copyright= kn-copyright= en-aut-name=BurakhamRodjana en-aut-sei=Burakham en-aut-mei=Rodjana kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=HiguchiKeiro en-aut-sei=Higuchi en-aut-mei=Keiro kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=OshimaMitsuko en-aut-sei=Oshima en-aut-mei=Mitsuko kn-aut-name=大島光子 kn-aut-sei=大島 kn-aut-mei=光子 aut-affil-num=3 ORCID= en-aut-name=GrudpanKate en-aut-sei=Grudpan en-aut-mei=Kate kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=4 ORCID= en-aut-name=MotomizuShoji en-aut-sei=Motomizu en-aut-mei=Shoji kn-aut-name=本水昌二 kn-aut-sei=本水 kn-aut-mei=昌二 aut-affil-num=5 ORCID= affil-num=1 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Chiang Mai University affil-num=2 en-affil= kn-affil=FIA Instruments Co., Ltd. affil-num=3 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=4 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Chiang Mai University affil-num=5 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University en-keyword=Sulfate kn-keyword=Sulfate en-keyword=Dimethylsulfonazo III kn-keyword=Dimethylsulfonazo III en-keyword=On-line reactor column kn-keyword=On-line reactor column en-keyword=Flow injection analysis kn-keyword=Flow injection analysis en-keyword=Spectrophotometry kn-keyword=Spectrophotometry END start-ver=1.4 cd-journal=joma no-vol=24 cd-vols= no-issue=5 article-no= start-page=665 end-page=668 dt-received= dt-revised= dt-accepted= dt-pub-year=2008 dt-pub=20080510 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Adsorption Properties of Ionic Species on Cross-linked Chitosans Modified with Catechol and Salicylic Acid Moieties en-subtitle= kn-subtitle= en-abstract= kn-abstract=Catechol-type chitosan resin and salicylic acid-type chitosan resin were easily synthesized for use in estimating the adsorption behavior of 34 elements at pH 1 - 7 in aquatic media. The catechol-type chitosan resin could adsorb Cu(II) at pH 3 - 7, In(III) at pH 4 - 6, Pb(II) and lanthanoids at pH 5 - 7, and U(VI) at pH 4 - 7 more effectively than the salicylic acid-type chitosan resin and the cross-linked chitosan resin (base material). Adsorption ability was in the order: catechol-type chitosan resin > salicylic acid-type chitosan resin > cross-linked chitosan resin.
en-copyright= kn-copyright= en-aut-name=OshitaKoji en-aut-sei=Oshita en-aut-mei=Koji kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=TakayanagiToshio en-aut-sei=Takayanagi en-aut-mei=Toshio kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=OshimaMitsuko en-aut-sei=Oshima en-aut-mei=Mitsuko kn-aut-name=大島光子 kn-aut-sei=大島 kn-aut-mei=光子 aut-affil-num=3 ORCID= en-aut-name=MotomizuShoji en-aut-sei=Motomizu en-aut-mei=Shoji kn-aut-name=本水昌二 kn-aut-sei=本水 kn-aut-mei=昌二 aut-affil-num=4 ORCID= affil-num=1 en-affil= kn-affil=Department of International Conservation Studies for Cultural Properties, Faculty of Cultural Properties, Kibi International University affil-num=2 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=3 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=4 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University en-keyword=CHEMICALLY-MODIFIED CHITOSAN kn-keyword=CHEMICALLY-MODIFIED CHITOSAN en-keyword=SELECTIVE ADSORPTION; ICP-MS kn-keyword=SELECTIVE ADSORPTION; ICP-MS en-keyword=COLUMN COLLECTION/CONCENTRATION kn-keyword=COLUMN COLLECTION/CONCENTRATION en-keyword=COMPLEXANE TYPES kn-keyword=COMPLEXANE TYPES en-keyword=PRECIOUS METALS kn-keyword=PRECIOUS METALS en-keyword=DERIVATIVES kn-keyword=DERIVATIVES en-keyword=COPRECIPITATION kn-keyword=COPRECIPITATION en-keyword=COPPER(II) kn-keyword=COPPER(II) en-keyword=BEHAVIOR kn-keyword=BEHAVIOR END start-ver=1.4 cd-journal=joma no-vol=481 cd-vols= no-issue=2 article-no= start-page=311 end-page=319 dt-received= dt-revised= dt-accepted= dt-pub-year=2003 dt-pub=20030403 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Ultratrace determination of phosphorus in ultrapurified water by a slope comparison method en-subtitle= kn-subtitle= en-abstract= kn-abstract=The analytical method for the determination of phosphorus in ultrapurified water was developed. Ultrapurified water was evaporated to concentrate phosphorus and the final sample volume for analysis was 10 ml. In 0.55 mol 1(-1) HCl, orthophosphate forms molybdophosphate, and then the molybdophosphate forms ion associate with Malachite Green (MG), which can be collected on a tiny membrane filter (diameter: 5 mm, and effective filtering diameter: 2 mm). After the ion associate on the membrane filter is dissolved together with the membrane filter in I ml of methyl cellosolve (MC), the absorbance of MC solution is measured at 627 nm by a flow injection-spectrophotometric detection technique. When 10 ml of the sample solution was used for the procedures and absorbance measurement, the calibration graph is linear up to about 500 ng 1(-1) of phosphorus and the detection limit was 8 ng 1(-1) (S/N = 3). For the determination of phosphorus in an ultrapurified water, 10-40 ml of sample solutions were transferred into poly(tetrafluoroethylene) (PTFE) beaker and evaporated to 5 ml or to dryness. To them, 0.003 mol 1(-1) HCl was added to get 10 ml of final solution, which was used as sample. Phosphate is determined by comparing the slope of the varied sample volume after evaporation/concentration with a slope of the standard calibration graph (a slope comparison method: SCM). The SCM enables to evaluate the concentration of phosphate in ultrapurified waters more sensitively and accurately. en-copyright= kn-copyright= en-aut-name=SabarudinAkhmad en-aut-sei=Sabarudin en-aut-mei=Akhmad kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=OshimaMitsuko en-aut-sei=Oshima en-aut-mei=Mitsuko kn-aut-name=大島光子 kn-aut-sei=大島 kn-aut-mei=光子 aut-affil-num=2 ORCID= en-aut-name=MotomizuShoji en-aut-sei=Motomizu en-aut-mei=Shoji kn-aut-name=本水昌二 kn-aut-sei=本水 kn-aut-mei=昌二 aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=2 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=3 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University en-keyword=ultrapurified water kn-keyword=ultrapurified water en-keyword=evaporation/concentration kn-keyword=evaporation/concentration en-keyword=ion associate kn-keyword=ion associate en-keyword=molybdophosphate kn-keyword=molybdophosphate en-keyword=malachite green kn-keyword=malachite green en-keyword=slope comparison method kn-keyword=slope comparison method END start-ver=1.4 cd-journal=joma no-vol=22 cd-vols= no-issue=1 article-no= start-page=161 end-page=164 dt-received= dt-revised= dt-accepted= dt-pub-year=2006 dt-pub=20060224 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Speciation of chromium in seawater by ICP-AES with dual mini-columns containing chelating resin en-subtitle= kn-subtitle= en-abstract= kn-abstract=A method for the preconcentration and speciation of chromium in seawater was developed. On-line preconcentration and determination were carried out by using inductively coupled plasma atomic emission spectrometry (ICP-AES) with dual mini-columns containing a chelating resin. In this system, Cr(III) was collected on the first column. The effluent containing residual chromium from the first column was collected on the second column after passing through a reduction-switching unit, in which the reducing agent was introduced, or not, for the reduction of Cr(VI) to Cr(Ill). Cr(VI) was determined as the difference between the concentration of pre-reduced Cr(VI) and Cr(III) in the effluent from the first column. The detection limits for Cr(III) and Cr(VI) were 0.04 and 0.09 mu g l(-1), respectively.
en-copyright= kn-copyright= en-aut-name=SumidaTakashi en-aut-sei=Sumida en-aut-mei=Takashi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=SabarudinAkhmad en-aut-sei=Sabarudin en-aut-mei=Akhmad kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=OshimaMitsuko en-aut-sei=Oshima en-aut-mei=Mitsuko kn-aut-name=大島光子 kn-aut-sei=大島 kn-aut-mei=光子 aut-affil-num=3 ORCID= en-aut-name=MotomizuShoji en-aut-sei=Motomizu en-aut-mei=Shoji kn-aut-name=本水昌二 kn-aut-sei=本水 kn-aut-mei=昌二 aut-affil-num=4 ORCID= affil-num=1 en-affil= kn-affil=Kochi Prefectual Industrial Technology Center affil-num=2 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=3 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=4 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University en-keyword=ONLINE PRECONCENTRATION kn-keyword=ONLINE PRECONCENTRATION en-keyword=SPECTROMETRY kn-keyword=SPECTROMETRY END start-ver=1.4 cd-journal=joma no-vol=159 cd-vols= no-issue=3-4 article-no= start-page=341 end-page=348 dt-received= dt-revised= dt-accepted= dt-pub-year=2007 dt-pub=20070426 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Application of chitosan functionalized with 3,4-dihydroxy benzoic acid moiety for on-line preconcentration and determination of trace elements in water samples en-subtitle= kn-subtitle= en-abstract= kn-abstract=Chitosan resin functionalized with 3,4-dihydroxy benzoic acid (CCTS-DHBA resin) was used as a packing material for flow injection (FI) on-line mini-column preconcentration in combination with inductively coupled plasma-atomic emission spectrometry (ICP-AES) for the determination of trace elements such as silver, bismuth, copper, gallium, indium, molybdenum, nickel, uranium, and vanadium in environmental waters. A 5-mL aliquot of sample (pH 5.5) was introduced to the minicolumn for the adsorption/preconcentration of the metal ions, and the collected analytes on the mini-column were eluted with 2 M HNO3, and the eluates was subsequently transported via direct injection to the nebulizer of ICP-AES for quantification. The parameters affecting on the sensitivity, such as sample pH, sample flow rate, eluent concentration, and eluent flow rate, were carefully examined. Alkali and alkaline earth metal ions commonly existing in river water and seawater did not affect the analysis of metals. Under the optimum conditions, the method allowed the determination of metal ions with detection limits of 0.08 ng mL(-1) (Ag), 0.9 ng mL(-1) (Bi), 0.07 ng mL(-1) (Cu), 0.9 ng mL(-1) (Ga), 0.9 ng mL(-1) (In), 0.08 ng mL(-1) (Mo), 0.09 ng mL(-1) (Ni), 0.9 ng mL(-1) (U), and 0.08 ng mL(-1) (V). By using 5 mL of sample solution, the enrichment factor and collection efficiency were 8-12 fold and 96-102%, respectively, whereas the sample throughput was 7 samples/hour. The method was validated by determining metal ions in certified reference material of river water (SLRS-4) and nearshore seawater (CASS-4), and its applicability was further demonstrated to river water and seawater samples.
en-copyright= kn-copyright= en-aut-name=SabarudinAkhmad en-aut-sei=Sabarudin en-aut-mei=Akhmad kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=NoguchiOsamu en-aut-sei=Noguchi en-aut-mei=Osamu kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=OshimaMitsuko en-aut-sei=Oshima en-aut-mei=Mitsuko kn-aut-name=大島光子 kn-aut-sei=大島 kn-aut-mei=光子 aut-affil-num=3 ORCID= en-aut-name=HiguchiKeiro en-aut-sei=Higuchi en-aut-mei=Keiro kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=4 ORCID= en-aut-name=MotomizuShoji en-aut-sei=Motomizu en-aut-mei=Shoji kn-aut-name=本水昌二 kn-aut-sei=本水 kn-aut-mei=昌二 aut-affil-num=5 ORCID= affil-num=1 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=2 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=3 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University affil-num=4 en-affil= kn-affil=FIA Instruments Division, Ogawa and Co. affil-num=5 en-affil= kn-affil=Department of Chemistry, Faculty of Science, Okayama University en-keyword=flow injection kn-keyword=flow injection en-keyword=chitosan resin kn-keyword=chitosan resin en-keyword=on-line preconcentration kn-keyword=on-line preconcentration en-keyword=3 kn-keyword=3 en-keyword=4-dihydroxy benzoic acid kn-keyword=4-dihydroxy benzoic acid en-keyword=ICP-AES kn-keyword=ICP-AES END start-ver=1.4 cd-journal=joma no-vol=17 cd-vols= no-issue= article-no= start-page=49 end-page=55 dt-received= dt-revised= dt-accepted= dt-pub-year=1995 dt-pub=19951220 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Determination of Inorganic Anions in Environmental Samples by Capillary Electrophoresis kn-title=キャピラリー電気泳動法による環境試料中の無機陰イオンの定量 en-subtitle= kn-subtitle= en-abstract= kn-abstract=Several inorganic anions in environmental water samples, such as river, rain, tap, and waste waters, were determined by capillary electrophoresis with indirect photometric UV detection. In this study, the use of a polymer coated silica capillary and an anionic organic photometric reagent realized a stable baseline and short analytical time. Nine kinds of anions, Cl(-), Br(-), NO(3)(-), SO(4)(2-), C(2)O(4)(2-), ClO(4)(-), F(-), HPO(4)(2-), and HCO(3)(-), were well separated and detected within 12 minutes. Calibration graphs for the anions showed a good linearity in the range of 0 to 4x10(-4) mol dm(-3). Detection limits of the anions were 2x10(-6) mol dm(-3) (HPO(4)(2-)) to 4x10(-5) mol dm(-3) (NO(2)(-)). Anions in river water (Zasu river) and waste water (Okayama University, North district) were measured over 5 days. The waste water contained various kinds of anions, at high concentrations with its large variation, when compared with the river water. The proposed method offers a simple, rapid, and accurate analysis of anions in water samples. en-copyright= kn-copyright= en-aut-name=TakayanagiToshio en-aut-sei=Takayanagi en-aut-mei=Toshio kn-aut-name=高柳俊夫 kn-aut-sei=高柳 kn-aut-mei=俊夫 aut-affil-num=1 ORCID= en-aut-name=WadaEiko en-aut-sei=Wada en-aut-mei=Eiko kn-aut-name=和田栄子 kn-aut-sei=和田 kn-aut-mei=栄子 aut-affil-num=2 ORCID= en-aut-name=OshimaMitsuko en-aut-sei=Oshima en-aut-mei=Mitsuko kn-aut-name=大島光子 kn-aut-sei=大島 kn-aut-mei=光子 aut-affil-num=3 ORCID= en-aut-name=MotomizuShoji en-aut-sei=Motomizu en-aut-mei=Shoji kn-aut-name=本水昌二 kn-aut-sei=本水 kn-aut-mei=昌二 aut-affil-num=4 ORCID= affil-num=1 en-affil= kn-affil=岡山大学理学部化学科 affil-num=2 en-affil= kn-affil=岡山大学理学部化学科 affil-num=3 en-affil= kn-affil=岡山大学理学部化学科 affil-num=4 en-affil= kn-affil=岡山大学理学部化学科 END start-ver=1.4 cd-journal=joma no-vol=21 cd-vols= no-issue= article-no= start-page=4 end-page=10 dt-received= dt-revised= dt-accepted= dt-pub-year=1999 dt-pub=199908 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Determination of trace metals in environmental water samples by inductively coupled plasma - mass spectrometry (ICP-MS) kn-title=誘導結合プラズマ―質量分析法による環境水中の微量金属の定量 en-subtitle= kn-subtitle= en-abstract= kn-abstract=Trace metals in water samples, such as tap water, river water, and sea water, were determined by inductively coupled plasma-mass spectrometry (ICP-MS). ICP-MS has sufficient sensitivity to detect even below the concentrations of ppt level, and therefore the samples were not pretreated with a concentration column. Practical samples were diluted by lo-fold with ultrapure water and measured directly by ICP-MS. The measuring time of one sample was 2.5 min, and the data for 30 elements were obtained simultaneously. The concentrations of heavy metals, such as Cr, Mn, Co, Ni, Cu, Zn, As, Cd, Sb, and Pb, in the water samples were in the ranges of 0.05~82ng/ml. Zasu river and Sibukawa (sea water) contained various kinds of metals, and the concentration ranges were spread in a wide range; for example, Mg was 25700 ppb and In was 2 ppt. ICP-MS is found to be a useful and a powerful instrument for trace amounts of elements, and can be applied satisfactorily to the environmental water analysis. en-copyright= kn-copyright= en-aut-name=LeeKyue-Hyung en-aut-sei=Lee en-aut-mei=Kyue-Hyung kn-aut-name=李啓熒 kn-aut-sei=李 kn-aut-mei=啓熒 aut-affil-num=1 ORCID= en-aut-name=OshimaMitsuko en-aut-sei=Oshima en-aut-mei=Mitsuko kn-aut-name=大島光子 kn-aut-sei=大島 kn-aut-mei=光子 aut-affil-num=2 ORCID= en-aut-name=TakayanagiToshio en-aut-sei=Takayanagi en-aut-mei=Toshio kn-aut-name=高柳俊夫 kn-aut-sei=高柳 kn-aut-mei=俊夫 aut-affil-num=3 ORCID= en-aut-name=MotomizuShoji en-aut-sei=Motomizu en-aut-mei=Shoji kn-aut-name=本水昌二 kn-aut-sei=本水 kn-aut-mei=昌二 aut-affil-num=4 ORCID= affil-num=1 en-affil= kn-affil=岡山大学理学部化学科 affil-num=2 en-affil= kn-affil=岡山大学理学部化学科 affil-num=3 en-affil= kn-affil=岡山大学理学部化学科 affil-num=4 en-affil= kn-affil=岡山大学理学部化学科 END start-ver=1.4 cd-journal=joma no-vol=25 cd-vols= no-issue= article-no= start-page=37 end-page=42 dt-received= dt-revised= dt-accepted= dt-pub-year=2003 dt-pub=200308 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=岡山大学周辺の割川水の長期定量データの解析 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name=HamasakiKayoko en-aut-sei=Hamasaki en-aut-mei=Kayoko kn-aut-name=濵崎佳代子 kn-aut-sei=濵崎 kn-aut-mei=佳代子 aut-affil-num=1 ORCID= en-aut-name=OshimaMitsuko en-aut-sei=Oshima en-aut-mei=Mitsuko kn-aut-name=大島光子 kn-aut-sei=大島 kn-aut-mei=光子 aut-affil-num=2 ORCID= affil-num=1 en-affil= kn-affil=岡山大学理学部 affil-num=2 en-affil= kn-affil=岡山大学理学部 END start-ver=1.4 cd-journal=joma no-vol=3 cd-vols= no-issue=3 article-no= start-page=265 end-page=269 dt-received= dt-revised= dt-accepted= dt-pub-year=1987 dt-pub=19870610 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Spectrophotometric Determination of Anionic Surfactants in River Water with Cationic AZO Dye by Solvent Extraction- Flow Injection Analysis en-subtitle= kn-subtitle= en-abstract= kn-abstract=Anionic surfactants in water were determined by a spectrophotometric flow injection technique coupled with solvent extraction. The ion associate which formed between an anionic surfactant and an cationic azo dye was extracted into an organic solvent and the absorbance was measured. The carrier was distilled water, and the reagent solution contained an cationic azo dye and sodium sulfate, the pH of which being adjusted to 5 with acetate buffer. A phase separator with a poly(tetrafluoroethylene) porous membrane (0.8μm pore size) was used to separate the organic phase. Six derivatives of cationic azo dyes and several extracting solvents were examined; a pair of 1-methyl-4-(4-diethylaminophenylazo)- pyridinium cation and chloroform turned out best. The sampling rate was 30 samples per hour. Calibration graphs were linear up to 2×10(-6)M or 3×10(-5)M of anionic surfactant when injection volume was 300 or 100μl, respectively. The relative standard deviation(n=10) was 1.5% for 300μl of 1×10(-6)M sodium dodecylsulfate. The detection limit was as little as 1×10(-8)M of anionic surfactant. Anionic surfactants in river water were determined satisfactorily. en-copyright= kn-copyright= en-aut-name=MotomizuShoji en-aut-sei=Motomizu en-aut-mei=Shoji kn-aut-name=本水昌二 kn-aut-sei=本水 kn-aut-mei=昌二 aut-affil-num=1 ORCID= en-aut-name=HazakiYoshito en-aut-sei=Hazaki en-aut-mei=Yoshito kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=OshimaMitsuko en-aut-sei=Oshima en-aut-mei=Mitsuko kn-aut-name=大島光子 kn-aut-sei=大島 kn-aut-mei=光子 aut-affil-num=3 ORCID= en-aut-name=ToeiKyoji en-aut-sei=Toei en-aut-mei=Kyoji kn-aut-name=桐栄恭二 kn-aut-sei=桐栄 kn-aut-mei=恭二 aut-affil-num=4 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 affil-num=4 en-affil= kn-affil=岡山大学 en-keyword=Anionic surfactant determination kn-keyword=Anionic surfactant determination en-keyword=cationic azo dye kn-keyword=cationic azo dye en-keyword=ion associate extraction kn-keyword=ion associate extraction en-keyword=spectrophotometry kn-keyword=spectrophotometry en-keyword=flow injection analysis kn-keyword=flow injection analysis END start-ver=1.4 cd-journal=joma no-vol=5 cd-vols= no-issue=6 article-no= start-page=767 end-page=769 dt-received= dt-revised= dt-accepted= dt-pub-year=1989 dt-pub=19891210 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Flotation/Extraction and Spectrophotometric Determination of Silicate with Molybdate and Cationic Dyes en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name=MotomizuShoji en-aut-sei=Motomizu en-aut-mei=Shoji kn-aut-name=本水昌二 kn-aut-sei=本水 kn-aut-mei=昌二 aut-affil-num=1 ORCID= en-aut-name=OshimaMitsuko en-aut-sei=Oshima en-aut-mei=Mitsuko kn-aut-name=大島光子 kn-aut-sei=大島 kn-aut-mei=光子 aut-affil-num=2 ORCID= en-aut-name=IkegamiTomoko en-aut-sei=Ikegami en-aut-mei=Tomoko kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 en-keyword=Silicate determination kn-keyword=Silicate determination en-keyword=ion association complex kn-keyword=ion association complex en-keyword=heteropolyacid kn-keyword=heteropolyacid en-keyword=cationic dyes kn-keyword=cationic dyes en-keyword=flotation kn-keyword=flotation en-keyword=extraction kn-keyword=extraction END start-ver=1.4 cd-journal=joma no-vol=5 cd-vols= no-issue=1 article-no= start-page=85 end-page=88 dt-received= dt-revised= dt-accepted= dt-pub-year=1989 dt-pub=19890210 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Spectrophotometric Determination of Silicate in Water with Molybdate and Malachite Green en-subtitle= kn-subtitle= en-abstract= kn-abstract=On the basis of the coloration formed with molybdosilicate and Malachite Green in aqueous solution, trace amounts of silicate were determined. In an acidic medium, silicate reacted with molybdate to form molybdosilicate, which reacted with Malachite Green to form a colored ion association complex. The color was stabilized by adding poly(vinyl alcohol). The molar absorptivity was 1.0×10(5)mol(-1)cm(-1) at 595nm, and the absorbance of the reagent blank was 0.089. The recommended concentration range of silicon was 0.1-5μg and the limit of detection was 0.01μg of silicon. Silicate in river and tap waters was determined. en-copyright= kn-copyright= en-aut-name=MotomizuShoji en-aut-sei=Motomizu en-aut-mei=Shoji kn-aut-name=本水昌二 kn-aut-sei=本水 kn-aut-mei=昌二 aut-affil-num=1 ORCID= en-aut-name=OshimaMitsuko en-aut-sei=Oshima en-aut-mei=Mitsuko kn-aut-name=大島光子 kn-aut-sei=大島 kn-aut-mei=光子 aut-affil-num=2 ORCID= en-aut-name=OjimaYuka en-aut-sei=Ojima en-aut-mei=Yuka kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 en-keyword=Spectrophotometry kn-keyword=Spectrophotometry en-keyword=silicate determination kn-keyword=silicate determination en-keyword=molybdate kn-keyword=molybdate en-keyword=Malachite Green kn-keyword=Malachite Green en-keyword=ion association complex kn-keyword=ion association complex END start-ver=1.4 cd-journal=joma no-vol=6 cd-vols= no-issue=4 article-no= start-page=627 end-page=628 dt-received= dt-revised= dt-accepted= dt-pub-year=1990 dt-pub=19900810 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Fluorometric Determination of Boric Acid by High Performance Liquid Chromatography after Derivatization with Chromotropic Acid en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name=OshimaMitsuko en-aut-sei=Oshima en-aut-mei=Mitsuko kn-aut-name=大島光子 kn-aut-sei=大島 kn-aut-mei=光子 aut-affil-num=1 ORCID= en-aut-name=MotomizuShoji en-aut-sei=Motomizu en-aut-mei=Shoji kn-aut-name=本水昌二 kn-aut-sei=本水 kn-aut-mei=昌二 aut-affil-num=2 ORCID= en-aut-name=JinZou en-aut-sei=Jin en-aut-mei=Zou kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 END start-ver=1.4 cd-journal=joma no-vol=6 cd-vols= no-issue=2 article-no= start-page=215 end-page=220 dt-received= dt-revised= dt-accepted= dt-pub-year=1990 dt-pub=19900410 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Spectrophotometric Determination of Calcium with Dicyclohexano- 24-crown-8 and Propyl Orange by Solvent Extraction/Flow Injection Method en-subtitle= kn-subtitle= en-abstract= kn-abstract=Calcium in water was determined by a spectrophotometric method involving flow injection coupled with solvent extraction. An ion association complex which formed between a calcium-crown complex ion and a dye anion was extracted into an organic solvent and the absorbance of the organic phase was measured after phase separation. Six derivatives of alkylaminophenylazobenzene sulfonic acid and tetrabromophenolphthalein ethylester were examined as counter anions with dicyclohexano-24-crown-8, and a mixture of benzene and chlorobenzene was examined as an extraction solvent. A suitable method for calcium determination in water was one with Propyl Orange and a (1+1 v/v) mixture of benzene and chlorobenzene. The carrier stream was distilled water, while the reagent stream was comprised of a dye anion and lithium hydroxide. The sampling rate was 20-30 per hour. The calibration graph was linear at concentrations up to 10(-4)M using samples of 100μl. The detection limit corresponding to a signal-to-noise ratio of 3 was 2×10(-7)M; the relative standard deviation was 0.99% for 10 injections of 5×10(-5)M calcium solution. Calcium in river water was determined satisfactorily by the proposed method. en-copyright= kn-copyright= en-aut-name=MotomizuShoji en-aut-sei=Motomizu en-aut-mei=Shoji kn-aut-name=本水昌二 kn-aut-sei=本水 kn-aut-mei=昌二 aut-affil-num=1 ORCID= en-aut-name=OshimaMitsuko en-aut-sei=Oshima en-aut-mei=Mitsuko kn-aut-name=大島光子 kn-aut-sei=大島 kn-aut-mei=光子 aut-affil-num=2 ORCID= en-aut-name=YonedaNaomi en-aut-sei=Yoneda en-aut-mei=Naomi kn-aut-name=米田直生 kn-aut-sei=米田 kn-aut-mei=直生 aut-affil-num=3 ORCID= en-aut-name=IwashidoTadashi en-aut-sei=Iwashido en-aut-mei=Tadashi kn-aut-name=岩知道正 kn-aut-sei=岩知道 kn-aut-mei=正 aut-affil-num=4 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 affil-num=4 en-affil= kn-affil=岡山大学 en-keyword=Calcium, Propyl Orange kn-keyword=Calcium, Propyl Orange en-keyword=dicyclohexano-24-crown-8 kn-keyword=dicyclohexano-24-crown-8 en-keyword=spectrophotometry kn-keyword=spectrophotometry en-keyword=solvent extraction kn-keyword=solvent extraction en-keyword=flow-injection method kn-keyword=flow-injection method END start-ver=1.4 cd-journal=joma no-vol=8 cd-vols= no-issue=5 article-no= start-page=619 end-page=625 dt-received= dt-revised= dt-accepted= dt-pub-year=1992 dt-pub=19921010 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Separation and Determination of Alkaline-Earth Metal Ions as UV- Absorbing Chelates with EDTA by Capillary Electrophoresis. Determination of Calcium and Magnesium in Water and Serum Samples en-subtitle= kn-subtitle= en-abstract= kn-abstract=Capillary electrophoresis of alkaline-earth metal ions was examined with a UV-absorbing chelating agent. The metal1 chelates separated in a capillary were measured by on-column UV-absorptive detection. When ethylenediamine-tetraacetic acid (EDTA) was used as an chelating agent in a carrier solution (pH 9.2), the order of the migration time (t(m)) of metal ions was as follows: Ba(2+)