Modified Carbon Nanotube Paste Electrode for Voltammetric Determination of Carbidopa, Folic Acid, and Tryptophan

被引：28

作者：

Baghbamidi, Sakineh Esfandiari ^{[2
]}

Beitollahi, Hadi ^{[1
]}

Karimi-Maleh, Hassan ^{[3
]}

Soltani-Nejad, Somayeh ^{[2
]}

Soltani-Nejad, Vahhab ^{[4
]}

Roodsaz, Sara ^{[4
]}

机构：

[1] Int Ctr Sci High Technol & Environm Sci, Res Inst Environm Sci, Environm Dept, Kerman 7631133131, Iran

[2] Islamic Azad Univ, Bandar Abbas Branch, Bandar Abbas 7915893144, Iran

[3] Islamic Azad Univ, Sci & Res Branch, Dept Chem, Mazandaran 4816819195, Iran

[4] Islamic Azad Univ, N Tehran Branch, Dept Chem, Tehran 1913674711, Iran

来源：

JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY | 2012年 / 2012卷

关键词：

PERFORMANCE LIQUID-CHROMATOGRAPHY; URIC-ACID; 2,7-BIS(FERROCENYL ETHYL)FLUOREN-9-ONE; ELECTROCATALYTIC OXIDATION; ELECTROCHEMICAL SENSOR; N-ACETYLCYSTEINE; LEVODOPA; NOREPINEPHRINE; 6-THIOGUANINE; ACETAMINOPHEN;

D O I：

10.1155/2012/305872

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A simple and convenient method is described for voltammetric determination of carbidopa (CD), based on its electrochemical oxidation at a modified multiwall carbon nanotube paste electrode. Under optimized conditions, the proposed method exhibited acceptable analytical performances in terms of linearity (over the concentration range from 0.1 to 700.0 mu M), detection limit (65.0 nM), and reproducibility (RSD = 2.5%) for a solution containing CD. Also, square wave voltammetry (SWV) was used for simultaneous determination of CD, folic acid (FA), and tryptophan (TRP) at the modified electrode. To further validate its possible application, the method was used for the quantification of CD, FA, and TRP in urine samples.

引用

页数：8

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