Determination of trace selenium by differential pulse adsorptive stripping voltammetry at a bismuth film electrode

被引：42
|
作者：
Zhang, Qing [2 ]
Li, Xiangjun [1 ]
Shi, Hui [3 ]
Hongzhou [3 ]
Yuan, Zhuobin [1 ]
机构：
[1] Chinese Acad Sci, Grad Univ, Coll Chem & Chem Engn, Beijing 100049, Peoples R China
[2] Chinese Acad Inspect & Quarantine, Beijing 100123, Peoples R China
[3] Capital Normal Univ, Dept Chem, Beijing 100048, Peoples R China
来源：
ELECTROCHIMICA ACTA | 2010年 / 55卷 / 16期
基金：
中国国家自然科学基金;
关键词：
Bismuth film electrode; Selenium; P-aminobenzene sulfonic acid (ABSA); Adsorptive stripping voltammetry; ATOMIC-ABSORPTION-SPECTROMETRY; SPECIATION ANALYSIS; NICKEL; CARBON; WATER;
D O I：
10.1016/j.electacta.2010.03.068
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The differential pulse adsorptive stripping voltammetric behavior of selenium (IV)-p-aminobenzene sulfonic acid-cetyltrimethylammonium bromide system at a bismuth-coated glassy carbon electrode (BiFE) has been investigated. A well-defined and sensitive stripping peak of the selenium (IV)-p-aminobenzene sulfonic acid complex was observed at -0.76V (vs. SCE) in a 0.15 mol/L acetate solution (pH 2.9) at a deposition potential of -0.40V (for 120s). The linear range was 2-30 mu g/L and the detection limit for an accumulation time of 300 s was 0.1 mu g/L This method was applied to determine the trace amount of selenium in the samples. (C) 2010 Elsevier Ltd. All rights reserved.
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页码：4717 / 4721
页数：5
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