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ID 33019
フルテキストURL
著者
Sabarudin, A. Department of Chemistry, Faculty of Science, Okayama University
Lenghor, N. Department of Chemistry, Faculty of Science, Okayama University
Liping, Y. Center Laboratory, Faculty of Science, JiangXi Agricultural University
Furusho, Y. GL Sciences, Inc.
Motomizu, Shoji Department of Chemistry, Faculty of Science, Okayama University
抄録

An automated sequential-injection online preconcentration system was developed for the determination of lead by inductively coupled plasma - atomic emission spectrometry (ICP-AES). The preconcentration of lead was performed with a minicolumn containing a lead-selective resin, Analig Pb-01, which was installed between a selection and a switching valve. In an acidic condition ( pH 1), lead could be adsorbed on the resin. The concentrated lead was afterward eluted with 25 mu L of 0.06 M nitrilotriacetic acid (NTA) solution ( pH 9) and was subsequently transported into the nebulizer of ICP-AES for quantification. The selectivity of the resin toward lead was examined using a solution containing a mixture of 61 elements. When a sample volume of 5 mL was used, the quantitative collection of lead ( >= 97%) was achieved, along with an enrichment factor of 19, a sampling frequency of 12 samples hr(-1), a detection limit of 70 pg mL(-1), and a lowest quantification limit of 100 pg mL(-1). The linear dynamic range was 0.1 to 5 ng mL(-1), and the relative standard deviation (n = 9) was 0.5% at a 5 ng mL(-1) Pb level. The detection limit of 30 pg mL(-1) and lowest quantification limit of 50 pg mL(-1) could be achieved when 10 mL of sample volume was used. The accuracy of the proposed method was validated by determining lead in the standard reference material of river water (SLRS-4), and its applicability to the determination of lead in environmental river water samples was demonstrated.

キーワード
nline prdetermination of lead
ICP-AES
oeconcentration
Pb-selective resin
sequential injection
備考
Published with permission from the copyright holder.
This is published in Spectroscopy Letters, 2006 Vol.39 Issue.6 pp.669-682
Publisher URL: http://dx.doi.org/10.1080/00387010600854345
Direct access to Thomson Web of Science record
(C)2006 by TAYLOR & FRANCIS INC
発行日
2006-12-01
出版物タイトル
Spectroscopy Letters
39巻
6号
開始ページ
669
終了ページ
682
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/30