Electrochemical detection of copper ion using a modified copolythiophene electrode

被引：97

作者：

Lin, Meng ^{[1
]}

Cho, MiSuk ^{[2
]}

Choe, Woo-Seok ^{[1
]}

Son, Yongkeun ^{[3
]}

Lee, Youngkwan ^{[1
]}

机构：

[1] Sungkyunkwan Univ, Dept Chem Engn, Suwon 440746, South Korea

[2] Sungkyunkwan Univ, Polymer Technol Inst, Suwon 440746, South Korea

[3] Sungkyunkwan Univ, Dept Chem, Suwon 440746, South Korea

来源：

ELECTROCHIMICA ACTA | 2009年 / 54卷 / 27期

关键词：

Voltammetric sensors; Iminodiacetatic acid; Polythiophene; Copper ion; Square wave voltammetry; CARBON-PASTE ELECTRODE; IMINODIACETIC ACID; ELECTROANALYSIS; VOLTAMMETRY; ADSORPTION; METALS; FILM;

D O I：

10.1016/j.electacta.2009.07.025

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

This paper studies the detection of copper ions by using an iminodiacetatic acid (IDA) modified conducting copolymer electrode. The copolymer film comprising 3-methyl thiophene (3MT) and 3-thiophene acetic acid (3TA) was chosen as the selective metal cation sensing electrode. The carboxylic group of the copolymer was modified to produce IDA group for metal ion capture. The modified electrode was used for the electrochemical analysis of trace copper ions by square wave voltammetry (SWV) technique. The electrode was found to be highly selective to Cu2+ in the range of 0.1-10 mu M. The modified electrode offered an excellent way, with a high stability and reusability, for selective determination of Cu2+ in a solution of mixed metal ions. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：7012 / 7017

页数：6

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