METHYLENE-BLUE PERFLUOROSULFONATED IONOMER MODIFIED MICROCYLINDER CARBON-FIBER ELECTRODE AND ITS APPLICATION FOR THE DETERMINATION OF HEMOGLOBIN

被引：85

作者：

CHEN, HY

JU, HX

XUN, YG

机构：

[1] Department of Chemistry, Nanjing University

来源：

ANALYTICAL CHEMISTRY | 1994年 / 66卷 / 24期

关键词：

D O I：

10.1021/ac00096a022

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The fabrication and surface morphology of methylene blue (MB)/perfluorosulfonated ionomer (Nafion) modified microcylinder carbon fiber electrode were studied. The stability of the modified electrode is good. The extraction coefficient K of MB between Nafion film and solution is similar to 110, and the diffusion coefficient of MB in Nafion film is similar to 5.3 x 10(-9) cm(2)/s. The MB/Nafion modified microcylinder electrode shows significant electrocatalytic activity for the oxidation of hemoglobin in weak acid media; it can be used for the determination of hemoglobin in the range of 5.0-50 mu M with a relative standard deviation of 3.5% at 6.0 mu M HB. A satisfactory result has been obtained for the determination of hemoglobin in clinical blood samples.

引用

页码：4538 / 4542

页数：5

共 26 条

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