Dopamine voltammetry at overoxidised polyindole electrodes

被引：69

作者：

Ghita, M

Arrigan, DWM

机构：

[1] Natl Univ Ireland Univ Coll Cork, NMRC, Cork, Ireland

[2] Univ Salford, Dept Chem, Salford M54 WT, Lancs, England

来源：

ELECTROCHIMICA ACTA | 2004年 / 49卷 / 26期

关键词：

polymer-modified electrode; permselectivity; dopamine; ascorbate;

D O I：

10.1016/j.electacta.2004.05.030

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Voltammetry of dopamine at overoxidised polyindole-modified electrodes was investigated. The effects of the overoxidised polyindole film thickness, preconcentration and electrode fouling, as well as detection of dopamine in mixtures with ascorbic acid, were investigated. Although sensitivity was lower than at an uncoated electrode, selectivity was achieved at the modified electrode due to the discriminatory property of the overoxidised polyindole against ascorbate, an anion under the conditions of this study. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：4743 / 4751

页数：9

共 29 条

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[2]

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[3]

2-N

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