聚对乙酰基偶氮胂膜修饰玻碳电极对抗坏血酸的催化氧化研究  

Development and electrocatalytic oxidation of ascorbic acid at the ploy(p-acetylarsenazoazo-o) modified glassy carbon electrode

作　　者：叶永康[1] 张海丽[1] 徐斌[1] 

机构地区：[1]湖北师范学院化学系,湖北黄石435002

出　　处：《湖北师范学院学报（自然科学版）》2000年第3期29-31,共3页Journal of Hubei Normal University(Natural Science)

摘　　要：用电化学聚合法研制了聚对乙酰基偶氮胂膜修饰玻碳电极 ,该电极对抗坏血酸 (AA)有良好的电催化氧化作用 ,AA在修饰电极上的氧化电位较空白玻碳电极负移约 4 50 m V。在选定的实验条件下 ,修饰电极以线扫伏安法测定 AA的线性范围为 5.0× 1 0 -5～ 1 .0× 1 0 -2 mol/L,检测下限为 1 .0× 1 0 -5mol/L。该电极具有较好的稳定性和重现性。The poly(p-acetylarsenazoazo-o) modified electrode was developed by electrochemical polymerization using cyclic voltammetry method(CV) and its electrocatalytic oxidation of ascorbic acid(AA) have been studied.The result showed a catalytic performance to the oxidation of AA,reducing overpotential by 450mV,and catalytic current increased.Linear ranges of AA was 5×10 -5～1×10 -2mol/L,the detect limits was 1 0×10 -5mol/L.

关 键 词：聚对乙酰基偶氮胂 修饰电极 抗坏血酸 电催化氧化 

分 类 号：O643.3[理学—物理化学]