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=<p>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