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ID 13846
Eprint ID
13846
フルテキストURL
タイトル(別表記)
On-Site Determination of Arsenic in Soil Extract by Anodic Stripping Voltammetry with Gold Film Electrode after Solid Phase Pretreatment
著者
古庄 義明 ジーエルサイエンス株式会社
牧田 伸明 ジーエルサイエンス株式会社
小野 壮登 ジーエルサイエンス株式会社
石山 高 埼玉県環境科学国際センター
高橋 基之 埼玉県環境科学国際センター
本水 昌二 岡山大学
抄録
A method for the on-site estimation of arsenic (As) contamination in soil by solid-phase extraction with a resin based on molecular recognition technology (SPE-MRT) and anodic stripping voltammetry (ASV) using a gold film microelectrode was developed. Optimized pretreatments were carried out as follows: 1 g of soil sample was taken and put into polypropylene test tube containing 33 mL 1 M hydrochloric acid solution, which was heated at 70 degree Celsius for 5 min using graphite block hot plate. As in the sample was extracted by shaking for 1 min using an automatic mini-shaker system. The extract was finally filtered through a 0.45 μm disk PTFE membrane filter. The extracted arsenic was electrodeposited on the gold film carbon microelectrode at −400 mV vs. Ag/AgCl for 1 min and the deposits were stripped at a rate of 5 mV/s to 580 mV vs. Ag/AgCl by using AnaLig® TE-3, Cu in soil extract was removed with 1 M hydrochloric acid for the determination of As. The method can eliminate Cu interference. The detection limit was 0.5 μg/L in soil extract. The results of voltammograms for As in the extracts from real soil samples were the same level as these obtained by a cross-check method using inductively coupled plasma mass spectroscopy (ICP-MS).
キーワード
solid phase extraction
anodic stripping voltammetry
soil extract
arsenic
発行日
2008-01-29
出版物タイトル
分析化学
出版物タイトル(別表記)
Bunseki Kagaku
56巻
12号
出版者
日本分析化学会
出版者(別表記)
The Japan Society for Analytical Chemistry
開始ページ
1165
終了ページ
1169
ISSN
0525-1931
NCID
AN00222633
資料タイプ
学術雑誌論文
オフィシャル URL
http://dx.doi.org/10.2116/bunsekikagaku.56.1165
言語
Japanese
著作権者
日本分析化学会
論文のバージョン
publisher
査読
有り
DOI