Voltammetric behavior and determination of phenylephrine at a glassy carbon electrode modified with multi-wall carbon nanotubes

被引：43
|
作者：
Zhu, Yuan-hai
Zhang, Zhi-ling [1 ]
Zhao, Wei
Pang, Dai-wen
机构：
[1] Wuhan Univ, Coll Chem & Mol Sci, Wuhan 430072, Peoples R China
[2] Daqing Petr Inst, Dept Chem, Daqing 163318, Peoples R China
来源：
SENSORS AND ACTUATORS B-CHEMICAL | 2006年 / 119卷 / 01期
关键词：
phenylephrine; multi-wall carbon nanotube; glass carbon electrode;
D O I：
10.1016/j.snb.2005.12.026
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A glassy carbon electrode (GCE) modified with multi-wall carbon nanotubes (MCNTs) was achieved by electrodeposition process directly from the MCNT suspension, and the modified electrode was used to examine the phenylephrine (PHE) oxidation in phosphate solutions. Experimental results showed that the oxidation of PHE at the modified electrode was a one-electron/one-proton process controlled by diffusion and the modified electrode exhibited excellent behavior for PHE determination, clearly outperforming GCE. In a range 1 x 10(-7)-7 x 10(-6) mol L-1 the peak current varied linearly with the concentration of PHE, and the detection limit reached 3 x 10(-8) mol L-1, which could be used as a basis for determining PHE. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：308 / 314
页数：7
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