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

被引：6
|
作者：
Matsuura, Hiroaki [1 ,2 ]
Akabe, Syuhei [1 ]
Kitamura, Tsubasa [1 ]
Takahashi, Takuto [1 ]
Uchiyama, Shunichi [1 ]
机构：
[1] Saitama Inst Technol, Grad Sch Engn, Dept Appl Chem, Fukaya, Saitama 3690293, Japan
[2] Saitama Inst Technol, Fac Engn, Dept Life Sci & Green Chem, Fukaya, Saitama 3690293, Japan
来源：
ANALYTICAL SCIENCES | 2015年 / 31卷 / 07期
关键词：
Electrocatalytic oxidation; oxalic acid; voltammetric detection; glassy carbon electrode; ELECTROCHEMICAL OXIDATION; HYDROGEN;
D O I：
10.2116/analsci.31.733
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
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.
引用
收藏
页码：733 / 735
页数：3
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