Voltammetric Detection of Oxalic Acid by Using Glassy Carbon Electrodes with Covalently Attached Nitrogen-containing Functional Groups

被引：0
|
作者：
Hiroaki Matsuura
Syuhei Akabe
Tsubasa Kitamura
Takuto Takahashi
Shunichi Uchiyama
机构：
[1] Saitama Institute of Technology,Department of Applied Chemistry, Graduate School of Engineering
[2] Saitama Institute of Technology,Department of Life Science & Green Chemistry, Faculty of Engineering
[3] 1690 Fusaiji,undefined
[4] Fukaya,undefined
来源：
Analytical Sciences | 2015年 / 31卷
关键词：
Electrocatalytic oxidation; oxalic acid; voltammetric detection; glassy carbon electrode;
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中图分类号：
学科分类号：
摘要：
We report on a novel voltammetric detection of oxalic acid by using glassy carbon electrodes with covalently attached nitrogen-containing functional groups prepared by stepwise electrolysis. A glassy carbon electrode electrooxidized in an ammonium carbamate solution was electroreduced at–1.0 V (vs. Ag/AgCl) in 1.0 M sulfuric acid for a long time. We found that the electrocatalytic oxidation wave of oxalic acid obtained by this modified glassy carbon electrode was moved to a more negative potential region than that obtained by a platinum electrode in an acidic medium. A good linearity for the peak current signals was observed in the concentration range from 0.1 to 50 mM.
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页码：733 / 735
页数：2
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