Poly(2-amino-4-thiazoleacetic acid)/multiwalled carbon nanotubes modified glassy carbon electrodes for the electrochemical detection of copper(II)

被引：38

作者：

Zhao, Hong ^{[1
]}

Jiang, Ying ^{[1
]}

Ma, Yurong ^{[1
]}

Wu, Zhijiao ^{[1
]}

Cao, Qian ^{[1
]}

He, Yujian ^{[1
]}

Li, Xiangjun ^{[1
]}

Yuan, Zhuobin ^{[1
]}

机构：

[1] Chinese Acad Sci, Grad Univ, Coll Chem & Chem Engn, Beijing 100049, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2010年 / 55卷 / 07期

基金：

中国国家自然科学基金;

关键词：

Poly(2-amino-4-thiazoleacetic acid); Multiwalled carbon nanotubes; Copper detection; Differential pulse stripping voltammetry; ATOMIC-ABSORPTION-SPECTROMETRY; VOLTAMMETRIC DETECTION; ION CHROMATOGRAPHY; STRIPPING ANALYSIS; AQUEOUS-SOLUTION; SILICA-GEL; METAL; FILM; ADSORPTION; COMPLEXES;

D O I：

10.1016/j.electacta.2009.12.008

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Poly(2-amino-4-thiazoleacetic acid)/multiwalled carbon nanotubes modified glassy carbon electrodes obtained by electropolymerization of 2-amino-4-thiazoleacetic acid. were used for the voltammetric determination of copper ions. The voltammetric response of copper ions at poly(2-amino-4-thiazoleacetic acid)/multiwalled carbon nanotubes modified glassy carbon electrodes was evaluated by differential pulse stripping voltammetry. The peak currents were linearly dependent on the concentrations of the copper ions in the range from 7.0 x 10(-7) M to 5.0 x 10(-5) M, with a coefficiency of 0.9987. The detection limit is 5.0. 10(-10) M calculated for a signal-to-noise ratio of 3 (S/N = 3). And it could be used for the simultaneous determination of copper and cadmium ions. The proposed method was successfully applied to the determination of copper ions in natural water. The concentration of Cu2+ was calculated to be 2.0 x 10(-5) M by standard addition method. The recovery rate was 94%. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：2518 / 2521

页数：4

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