聚酒石酸修饰玻碳电极的电化学性质及对抗坏血酸测定的研究  

Study on the electrochemical behavior of polytartaric acid modified glassy carbon electrode and the determination of ascorbic acid

作　　者：牟维君[1] 梁克中[2] 黄美英[2] 

机构地区：[1]重庆三峡医药高等专科学校,重庆万州404000 [2]重庆三峡学院化学与环境工程学院,重庆万州400400

出　　处：《化学研究与应用》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

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.

关 键 词：酒石酸 抗坏血酸 修饰电极 电催化氧化 

分 类 号：O657.1[理学—分析化学]