摘要
The fabrication and electrochemical characteristics of tartaric acid modified glass carbon electrode were investigated.The electrode was applied to the determination of ascorbic acid.In PBS buffer(pH 7.0),a sensitive oxidation peak was observed.The current was proportional to the concentration of ascorbic acid in the range of 3.8×10-6~3.5×10-3 mol/ L with a detection limit of 1.1×10-6mol/L.The modified electrode had good repeatability.Also,the determination of ascorbic acid in Vc plates was evaluate and the results were satisfactory.
The fabrication and electrochemical characteristics of tartaric acid modified glass carbon electrode were investigated. The electrode was applied to the determination of ascorbic acid. In PBS buffer (pH 7.0) ,a sensitive oxidation peak was observed. The current was proportional to the concentration of aseorbic acid in the range of 3.8 × 10^-6 - 3.5 × 10^-3 mol/L with a detection limit of 1.1 × 10^-6mol/L. The modified electrode had good repeatability. Also, the determination of ascorbic acid in Vc plates was evaluate and the results were satisfactory.
出处
《化学研究与应用》
CAS
CSCD
北大核心
2009年第2期211-214,共4页
Chemical Research and Application
基金
重庆市教育委员会科研项目(KJ-081103)资助
关键词
酒石酸
抗坏血酸
修饰电极
电催化氧化
tartaric acid
ascorbic acid: modified electrode
electrocatalytic oxidation