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ID 33007
フルテキストURL
著者
Chuanuwatanakul, Suchada Department of Chemistry, Faculty of Science, Chulalongkorn University
Dungchai, Wijitar Department of Chemistry, Faculty of Science, Chulalongkorn University
Chailapakul, Orawon Department of Chemistry, Faculty of Science, Chulalongkorn University
Motomizu, Shoji Department of Chemistry, Faculty of Science, Okayama University
抄録

A sequential injection-square-wave anodic stripping voltammetry (SIA-SWASV) is proposed for the simultaneous determination of Pb(II), Cd(II) and Zn(II), employing an in situ plated bismuth film screen-printed carbon electrode (Bi-SPCE) as a working electrode and hydrochloric acid as a supporting electrolyte. Bi(III) and analyte metal ions were on-line deposited onto a SPCE at -1.4 V vs. Ag/AgCl for 180 s. At a stopped flow, a square-wave voltammogram was recorded from -1.3 to 0 V vs. Ag/AgCl. The experimental conditions were optimized. Under the optimum conditions, the linear ranges were 0 - 70 mu g L-1 for Pb(II) and Cd(II), and 75 - 200 mu g L-1 for Zn(II). The limits of detection (S/N = 3) were obtained at concentrations as low as 0.89 mu g L-1 for Pb(II) and 0.69 mu g L-1 for Cd(II) for a 180-s deposition time. The proposed method was applied to the determination of Pb(II), Cd(II) and Zn(II) in water samples with satisfactory results.

キーワード
DIAMOND THIN-FILM
FLOW-INJECTION
PLATED CARBON; WATER SAMPLES; COPPER
LEAD
ZINC
EXTRACTS
CADMIUM
CD(II)
備考
Published with permission from the copyright holder.
This is published in Analytical Sciences, 2008 Vol.24 Issue.5 pp.589-594
Publisher URL: http://dx.doi.org/10.2116/analsci.24.589
Direct access to Thomson Web of Science record
(C)2008 by The Japan Society for Analytical Chemistry
発行日
2008-05-10
出版物タイトル
Analytical Sciences
24巻
5号
開始ページ
589
終了ページ
594
資料タイプ
学術雑誌論文
言語
English
査読
有り
DOI
Web of Sience KeyUT
Submission Path
analytical_chemistry/23