ZnO/碳纤维电极对多巴胺和尿酸的电催化作用  

Electrocatalytic effect of ZnO/carbon fiber electrode on dopamine and uric acid

作　　者：杨池[1] 张丹[1] 谢佳彤 石一涵[1] 瞿成[1] 雷静[1] 

机构地区：[1]南通大学药学院,南通226001

出　　处：《分析试验室》2016年第1期26-29,共4页Chinese Journal of Analysis Laboratory

基　　金：国家自然科学基金(61404075);江苏省自然科学基金青年基金(BK20130394)资助

摘　　要：采用水热法在碳纤维（CF）模板上原位制备纳米结构Zn O。研究了多巴胺（DA）及尿酸（UA）在Zn O/CF电极上的电化学行为,DA和UA在Zn O/CF电极上均可被电催化氧化;采用微分脉冲伏安法（DPV）,DA和UA在Zn O/CF电极上氧化峰可完全分离,且峰电流和对应的UA,DA浓度呈良好的线性关系;DPV氧化电流与DA浓度在0.001~0.04 mmol/L范围内呈线性关系,而与UA浓度在0.05-0.4 mmol/L范围内呈线性关系。Nanostructured zinc oxide （ZnO） has been prepared by hydrothermal etching method strategy with carbon fibers （CF） templates. The as-synthesized ZnO/CF hybrids were used to fabricate microelectrode and exhibited a strong electrocatalytic activity toward the oxidation of dopamine （DA） and uric acid （UA）. Besides, the oxidation peaks of DA and UA were completely separated and the peak currents of DA also linearly changed with the increase of UA as well as UA concentration. There were linear relationships between the anodic peak current and the concentration of DA （0. 001 -0. 04 mmol/L） and UA （0. 05 -0. 4 mmol/L） respectively in differential pulse vohammetry. Satisfactory results were obtained in the test of real samples.

关 键 词：多巴胺 尿酸 ZNO 碳纤维 电催化 

分 类 号：TH83[机械工程—仪器科学与技术] O657.3[机械工程—精密仪器及机械]