Anodic stripping voltammetric measurement of trace cadmium at tin-coated carbon paste electrode

被引：44

作者：

Li, Bang Lin ^{[1
]}

Wu, Zhi Ling ^{[1
]}

Xiong, Chang Hong ^{[1
]}

Luo, Hong Qun ^{[1
]}

Li, Nian Bing ^{[1
]}

机构：

[1] Southwest Univ, Sch Chem & Chem Engn, Minist Educ, Key Lab Ecoenvironm Three Gorges Reservoir Reg, Chongqing 400715, Peoples R China

来源：

TALANTA | 2012年 / 88卷

基金：

中国国家自然科学基金;

关键词：

Tin film electrode; Carbon paste electrode; Cadmium(II) determination; Stripping analysis; BISMUTH-FILM ELECTRODE; HEAVY-METALS; LEAD; ELECTROANALYSIS; POWDER;

D O I：

10.1016/j.talanta.2011.11.070

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A carbon paste electrode modified with tin was used for the determination of trace cadmium by anodic stripping voltammetry. The electroanalytical performance for the determination of Cd(II) on the tin-coated carbon paste electrode(SnF-CPE) was better than that on the carbon paste electrode. The measuring conditions have been optimized. The measurement of trace cadmium on the SnF-CPE has the best response under the conditions of 0.10 mol L-1 acetate buffer solution (pH 3.9), 3.5 mg L-1 Sn(II), deposition potential of -1.40 V. and deposition time of 150 s. The SnF-CPE revealed highly linear behavior in the concentration range of 2.0-90.0 mu g L-1 with the detection limit of 1.13 mu g L-1 for Cd(II). The developed sensor has been applied to the determination of Cd(II) in real water samples with satisfactory results. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：707 / 710

页数：4

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