ABTS-Multiwalled Carbon Nanotubes Nanocomposite/Bi Film Electrode for Sensitive Determination of Cd and Pb by Differential Pulse Stripping Voltammetry

被引：73

作者：

Deng, Wenfang ^{[1
]}

Tan, Yueming ^{[1
]}

Fang, Zhengfa ^{[1
]}

Xie, Qingji ^{[1
]}

Li, Yunyong ^{[1
]}

Liang, Xiaoling ^{[1
]}

Yao, Shouzhuo ^{[1
]}

机构：

[1] Hunan Normal Univ, Key Lab Chem Biol & Tradit Chinese Med Res, Minist Educ China, Coll Chem & Chem Engn, Changsha 410081, Hunan, Peoples R China

来源：

ELECTROANALYSIS | 2009年 / 21卷 / 22期

基金：

中国国家自然科学基金;

关键词：

2,2 '-Azinobis(3-ethylbenzothiazoline-6-sulfonate) diammonium salt (ABTS); Multiwalled carbon nanotubes (MWCNTs); Bismuth film electrode (BiFE); Differential pulse stripping voltammetry (DPSV); Pb2+; Cd2+; Voltammetry; Nanotube; HEAVY-METAL IONS; AQUEOUS-SOLUTION; TRACE-METALS; ADSORPTION; MERCURY; FABRICATION; REDUCTION; CADMIUM; ZN;

D O I：

10.1002/elan.200900207

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A 2,2'-azinobis (3-ethylbenzothiazoline-6-sulfonate) diammonium salt (ABTS)-multiwalled carbon nanotubes (MWCNTs) nanocomposite/Bi film modified glassy carbon (GC) electrode was constructed for the differential pulse stripping voltammetric determination of trace Pb2+ and Cd2+. This electrode was more sensitive than ABTS-free Bi/GC and Bi/MWCNTs/GC electrodes. Linear responses were obtained in the range from 0.5 to 35 mu g L-1 for Cd2+ and 0.2 to 50 mu g L-1 Pb(II), with detection limits of 0.2 mu g L-1 for Cd2+ and 0.1 mu g L-1 for Pb2+, respectively. This sensor was applied to the simultaneous detection of Cd2+ and Pb2+ in water samples with satisfactory recovery.

引用

页码：2477 / 2485

页数：9

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