Amperometric Response of Hydrogen Peroxide at Carbon Nanotubes Paste Electrodes Modified with an Electrogenerated Poly(Fe(III)-5-amino-phenantroline). Analytical Applications for Glucose Biosensing

被引：12

作者：

Lozano, Maria L. ^{[1
]}

Rodriguez, Marcela C. ^{[2
]}

Herrasti, Pilar ^{[3
]}

Galicia, Laura ^{[1
]}

Rivas, Gustavo A. ^{[2
]}

机构：

[1] Univ Autonoma Metropolitana Iztapalapa, Mexico City 09340, DF, Mexico

[2] Univ Nacl Cordoba, Dept Quim Fis, INFIQC, Fac Ciencias Quim, RA-5000 Cordoba, Argentina

[3] Univ Autonoma Madrid, Fac Ciencias, Dept Quim Fis Aplicada, E-28049 Madrid, Spain

来源：

ELECTROANALYSIS | 2010年 / 22卷 / 01期

关键词：

Fe(III)-5-amino-1,10-phenantroline complex; Carbon nanotubes paste electrode; Glucose biosensor; Hydrogen peroxide; Glucose oxidase; Polymers; Biosensors; Nanotubes; COPPER; COMPOSITES; SENSORS; ACIDS;

D O I：

10.1002/elan.200900359

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

This work reports the catalytic activity of a polymer electrogenerated from Fe(III)-5-amino-1,10-phenantroline solution at a carbon nanotubes paste electrode (CNTPE) towards the oxidation and mainly the reduction of hydrogen peroxide. The important role of carbon nanotubes on the generation of poly(Fe(III)-5-amino-1,10-phenantroline) is demonstrated through the comparison with the behavior of graphite paste electrode (CPE). The polymer electrogenerated at CNTPE largely improves the amperometric detection of hydrogen peroxide at -0.100 V The analytical application of the resulting electrode is demonstrated in connection with the design of a glucose biosensor based on the deposition of GOx and diluted Nafion on the top of the polymer-modified CNTPE. The quantification of glucose in human serum samples showed a good correlation with the values obtained by the spectrophotometric technique.

引用

页码：128 / 134

页数：7