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Flow Injection Determination of Hydrogen Peroxide Using a Carbon Paste Electrode Modified with a Manganese Dioxide Film

 

作者: Klemens Schachl,   Hailemichael Alemu,   Kurt Kalcher,   Jitka Jezkova,   Ivan Svancara,   Karel Vytras,  

 

期刊: Analytical Letters  （Taylor Available online 1997）
卷期: Volume 30, issue 15  

页码: 2655-2673

 

ISSN:0003-2719

 

年代: 1997

 

DOI:10.1080/00032719708001812

 

出版商: Taylor & Francis Group

 

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

 

数据来源: Taylor

 

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 H2O2after electrochemical activation. Effects of flow rate, operating potential, concentration, injection volume and interferences were investigated. A linear response towards H2O2from 5 μg.l−1to 450 mg.l−1and a detection limit (3 signal-to-noise ratio) of 4.7 μg.l−1was found. The method was employed for the determination of H2O2in rain water samples.

 

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