Determination of nitrite with the electrocatalytic property to the oxidation of nitrite on thionine modified aligned carbon nanotubes

被引：177

作者：

Zhao, Kun

Song, Haiyan

Zhuang, Shuqi

Dai, Liming

He, Pingang

Fang, Yuzhi ^{[1
]}

机构：

[1] E China Normal Univ, Dept Chem, Shanghai 200062, Peoples R China

[2] Univ Dayton, Coll Engn, Dept Chem & Mat Engn, Dayton, OH 45469 USA

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2007年 / 9卷 / 01期

关键词：

thionine; aligned carbon nanotubes; nitrite; modified electrode; electrocatalytic oxidation;

D O I：

10.1016/j.elecom.2006.07.001

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A thionine modified aligned carbon nanotubes (ACNTs) electrode was fabricated and was used to electrochemically determine nitrite. The thionine modified ACNTs electrode exhibited enhanced electrocatalytic behavior to the oxidation of nitrite. The electrochemical mechanism of the thionine/ACNTs electrode towards the oxidation of nitrite was discussed. The thionine modified ACNTs electrode exhibited fast response towards nitrite with a detection limit of 1.12 x 10(-6) mol L-1 and a linear range of 3 x 10(-6) - 5 x 10(-4) mol L-1. The proposed method was successfully applied in the detection of nitrite in real samples. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：65 / 70

页数：6

共 44 条

[31] Electrocatalytic oxidation of nitrite at an aluminum electrode modified by a chemically deposited palladium pentacyanonitrosylferrate film [J].