Fabrication of a sensor for simultaneous determination of norepinephrine, acetaminophen and tryptophan using a modified carbon nanotube paste electrode

被引：96

作者：

Akhgar, Mohammad Reza ^{[2
]}

Beitollahi, Hadi ^{[3
]}

Salari, Mohammad ^{[2
]}

Karimi-Maleh, Hassan ^{[1
]}

Zamani, Hassan ^{[4
]}

机构：

[1] Islamic Azad Univ, Dept Chem, Majlesi Branch, Esfahan, Iran

[2] Islamic Azad Univ, Dept Chem, Fac Sci, Kerman Branch, Kerman, Iran

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

[4] Univ Appl Sci & Technol, Fac Sci, Esfahan, Iran

来源：

ANALYTICAL METHODS | 2012年 / 4卷 / 01期

关键词：

SIMULTANEOUS VOLTAMMETRIC DETERMINATION; FOLIC-ACID; URIC-ACID; ELECTROCHEMICAL SENSOR; ELECTROCATALYTIC DETERMINATION; OXIDATION; EPINEPHRINE; HYDRAZINE; NANOMOLAR; SURFACE;

D O I：

10.1039/c1ay05503h

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Acarbon paste electrode (CPE) was modified by incorporation of carbon nanotubes and ferrocene (FC) and studied in pH 7.0 phosphate buffer solution (PBS) by cyclic voltammetry (CV). The modified electrode showed an excellent electrocatalytic effect on the oxidation of norepinephrine (NE). In PBS of pH 7.0, the oxidation current increased linearly with concentration of NE from 0.47 to 500.0 mu mol L-1. The detection limit (3 sigma) obtained by differential pulse voltammetry (DPV) was 0.21 mu mol L-1. Then the modified electrode was used to determineNEin an excess of acetaminophen (AC) and tryptophan (TRP) by DPV. Finally, this method was used for the determination of NE, AC and TRP in some real samples.

引用

页码：259 / 264

页数：6

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