Nafion-modified glassy carbon electrode for trace determination of indium

被引：8
|
作者：
Xiang, CL
Zou, YJ
Xie, JJ
Fei, XM [1 ]
Li, JH
机构：
[1] Cent China Normal Univ, Dept Chem, Wuhan 430079, Peoples R China
[2] Wuhan Univ Technol, Dept Mat, Wuhan 430070, Peoples R China
来源：
ANALYTICAL LETTERS | 2005年 / 38卷 / 13期
关键词：
undium; Nafion-modified electrode; adsorption stripping voltammetry;
D O I：
10.1080/00032710500259425
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A new method for determination of trace indium is proposed by the adsorption stripping voltammetry (ASV) using a Nafion-modified glassy carbon electrode (NMGCE). This chemically modified electrode (CME) shows a better stability. A sensitive oxidation peak was observed, and the anodic peak potential is ca. -0.548 V (vs. SCE). The influences of various experimental parameters on the current peak were completely studied. Under the optimized condition, the method has been applied to the determination of indium in water samples. There is a good linear relationship between the peak current (i(p)) and indium(III) concentration in the range of 1.0x10(-9) -1.0x10(-7) mol/l, and the limit of detection is 7.5x10(-10) mol/l.
引用
收藏
页码：2045 / 2055
页数：11
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