Flow injection determination of hydrogen peroxide using a carbon paste electrode modified with a manganese dioxide film

被引：28

作者：

Schachl, K

Alemu, H

Kalcher, K

Jezkova, J

Svancara, I

Vytras, K

机构：

[1] KARL FRANZENS UNIV GRAZ,INST ANALYT CHEM,A-8010 GRAZ,AUSTRIA

[2] UNIV ADDIS ABABA,DEPT CHEM,ADDIS ABABA,ETHIOPIA

[3] UNIV PARDUBICE,DEPT ANALYT CHEM,CZ-53210 PARDUBICE,CZECH REPUBLIC

来源：

ANALYTICAL LETTERS | 1997年 / 30卷 / 15期

关键词：

hydrogen peroxide; manganese dioxide; carbon paste electrode; amperometry; flow injection analysis;

D O I：

10.1080/00032719708001812

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A manganese dioxide film modified carbon paste electrode was developed for use as an amperometric sensor for the determination of hydrogen peroxide (H2O2) in ammoniacal aqueous solutions. The electrode showed a stable response towards H2O2 after electrochemical activation. Effects of flow rate, operating potential, concentration, injection volume and interferences were investigated. A linear response towards H2O2 from 5 mu g.l(-1) to 450 mg.l(-1) and a detection limit (3 signal-to-noise ratio) of 4.7 mu g.l(-1) was found. The method was employed for the determination of H2O2 in rain water samples.

引用

页码：2655 / 2673

页数：19

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