Electrochemistry and Adsorptive Stripping Voltammetric Determination of Amoxicillin on a Multiwalled Carbon Nanotubes Modified Glassy Carbon Electrode

被引：64

作者：

Rezaei, Behzad ^{[1
]}

Damiri, Sajjad ^{[1
]}

机构：

[1] Isfahan Univ Technol, Dept Chem, Esfahan 8415683111, IR, Iran

来源：

ELECTROANALYSIS | 2009年 / 21卷 / 14期

关键词：

Multiwalled carbon nanotubes; Amoxicillin; Adsorptive stripping voltammetry; Fe2O3; nanoparticles; Antibiotics; Nanotubes; BETA-LACTAM ANTIBIOTICS; LIQUID-CHROMATOGRAPHY; CLAVULANIC ACID; SPECTROPHOTOMETRIC DETERMINATION; PASTE ELECTRODE; HUMAN PLASMA; ELECTROCATALYTIC ACTIVITY; ALPHA-FE2O3; NANOTUBES; NADH DETECTION; CYTOCHROME-C;

D O I：

10.1002/elan.200804571

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The study of electrochemical behavior of amoxicillin (AMX), a beta-lactam antibiotic, is described on a multiwalled carbon nanotubes (MWCNTs) modified electrode by electrochemical impedance spectroscopy (EIS) and adsorptive stripping voltammetry for sensitive determination of AMX in pharmaceutical and human urine samples within a wide pH range from 2.0 to 10.0. Also, studies by Fe2O3 nanoparticles modified carbon paste electrode show that iron oxide impurities in the MWCNTs are not active sites for sensing of amoxicillin. Under optimized conditions, the oxidation peak has two linear dynamic ranges of 0.6-8.0 and 10.0-80.0 mu M with a detection limit of 0.2 mu M and a precision of <4%.

引用

页码：1577 / 1586

页数：10

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