尿酸在聚亚甲基蓝修饰金电极上的电化学及电化学动力学性质  

Electrochemical behaviors of uric acid at gold electrode modified with polymethylene blue and its electrochemical kinetics

作　　者：马艳蓉[1] 李力[1] 高作宁[2] 

机构地区：[1]北方民族大学,预科教育学院,宁夏银川750021 [2]宁夏大学能源化工重点实验室化学化工学院,宁夏银川750021

出　　处：《化学研究与应用》2009年第2期207-210,共4页Chemical Research and Application

基　　金：北方民族大学科研项目(2007Y040)资助

摘　　要：The electrochemical properties of gold electrode(PMB/Au) modified with polymethylene blue(PMB) and the electrochemical behaviors of UA at PMB/Au were studied.The kinetics parameters were determined.PMB/Au exhibited a significant catalytic effect for the oxidation of Uric acid(UA).The oxidation peak potential shifted 70mV negatively and the peak current increased greatly for UA at PMB/Au comparing with the bare Au electrode.The kinetic parameters such as the electron transfer coefficient and the reaction rate constant for catalytic oxidation of UA on PMB/Au were evaluated,respectively.The electroehemieal properties of gold electrode （PMB/Au） modified with polymethylene blue （PMB） and the dectrochemical behaviors of UA at PMB/Au were studied. The kinetics parameters were determined. PMB/Au exhibited a significant catalytic effect for the oxidation of Uric acid （UA）. The oxidation peak potential shifted 70mY negatively and the peak current increased greatly for UA at PMB/Au comparing with the bare Au electrode. The kinetic parameters such as the electron transfer coefficient and the reaction rate constant for catalytic oxidation of UA on PMB/Au were evaluated, resoectively.

关 键 词：尿酸 聚亚甲基蓝 修饰电极 电化学性质 

分 类 号：O657[理学—分析化学]