Sensitive determination of Sudan I at an ordered mesoporous carbon modified glassy carbon electrode

被引：58

作者：

Yang, Dongxu ^{[1
]}

Zhu, Liande ^{[1
]}

Jiang, Xiaoyan ^{[1
]}

Guo, Liping ^{[1
]}

机构：

[1] NE Normal Univ, Sch Chem, Changchun 130024, Jilin, Peoples R China

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2009年 / 141卷 / 01期

关键词：

Sudan I; Ordered mesoporous carbon (OMC); Differential pulse voltammetry; Ketchup; STRIPPING VOLTAMMETRIC DETERMINATION; NANOPOROUS CARBON; ELECTROCHEMICAL DETERMINATION; DYES;

D O I：

10.1016/j.snb.2009.05.030

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

This article reports on a sensitive and interference free detection method for Sudan I based on an ordered mesoporous carbon (CMC) modified glassy carbon electrode (OMC/GCE) by differential pulse voltammetry (DPV). The OMC/GCE displayed good analytical performance for the measurement of Sudan I. Under the optimum experimental conditions, Sudan I could be linearly detected in the wide concentration range of 4.03 x 10(-7) to 6.60 x 10(-5) M with a high sensitivity of 453.8 mu A mM(-1). The detection limit was down to around 2.44 x 10(-9) M (S/N = 3). Finally, the method was successfully applied for the determination of Sudan I in ketchup samples with satisfying results. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：124 / 129

页数：6

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