Simultaneous determination of dopamine, ascorbic acid and uric acid with electrospun carbon nanofibers modified electrode

被引：152

作者：

Liu, Yang ^{[1
]}

Huang, Jianshe ^{[1
]}

Hou, Haoqing ^{[2
]}

You, Tianyan ^{[1
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, Grad Sch, State Key Lab Electroanalyt Chem, Changchun 130022, Jilin, Peoples R China

[2] Jiangxi Normal Univ, Coll Chem & Chem Engn, Nanchang 330027, Jiangxi, Peoples R China

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2008年 / 10卷 / 10期

基金：

中国国家自然科学基金;

关键词：

Electrospun carbon nanofibers; Simultaneous detection; Dopamine; Ascorbic acid; Uric acid;

D O I：

10.1016/j.elecom.2008.07.020

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A novel carbon-nanofiber-modified carbon-paste electrode (CNF-CPE) was employed for the simultaneous determination of dopamine (DA), ascorbic acid (AA) and uric acid (UA) with good selectivity and high sensitivity. The CNFs were prepared by combination of electrospinning technique with thermal treatment method and were used without any pretreatment. In application to determination of DA, AA and UA in the ternary mixture, the pristine CNF-CPE exhibited well-separated differential pulse voltammetric peaks with high catalytic current. Low detection limits of 0.04 mu M, 2 mu M and 0.2 mu M for DA, AA and UA were obtained, with the linear calibration curves over the concentration range 0.04-5.6 mu M, 2-64 mu M and 0.8-16.8 mu M, respectively. (c) 2008 Elsevier B.V. All rights reserved.

引用

收藏

页码：1431 / 1434

页数：4

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