The Study of Electrochemical Behavior of Dopamine at Nano-gold Modified Carbon Fiber Electrode  

作　　者：HongZHANG BaoKangJIN XiaoYanJIN 

机构地区：[1]DelaartmentofChemistry,FuyangTeachersCollege,Fuyang236032 [2]SchoolofChemistryandChemicalEngineering,AnhuiUniversity,Hefei230039

出　　处：《Chinese Chemical Letters》2003年第7期737-739,共3页中国化学快报（英文版）

基　　金：The authors gratefully acknowledge financial support from the Natural Science Foundation of Anhui Province;the Natural Science Foundation of Anhui Education Committee(2001kj185).

摘　　要：The electrochemical behaviors (cyclic voltammetry, CV and different pulse voltammetry, DPV) of dopamine (DA) were studied in this paper. The result indicated that the oxidation of dopamine was controlled by diffusion and adsorption simultaneously at nano-gold (NG) modified carbon fiber electrode (CFE). This modified electrode can separate the peak potentials of dopamine and ascorbic acid (AA). The peak current of DA in DPV curve was found to be linearly proportional to the concentration of DA at range of 2.0?0-6～1.5?0-5mol/L and 1.0?0-5～5.0?0-4mol/L, respectively.The electrochemical behaviors (cyclic voltammetry, CV and different pulse voltammetry, DPV) of dopamine (DA) were studied in this paper. The result indicated that the oxidation of dopamine was controlled by diffusion and adsorption simultaneously at nano-gold (NG) modified carbon fiber electrode (CFE). This modified electrode can separate the peak potentials of dopamine and ascorbic acid (AA). The peak current of DA in DPV curve was found to be linearly proportional to the concentration of DA at range of 2.0?0-6～1.5?0-5mol/L and 1.0?0-5～5.0?0-4mol/L, respectively.

关 键 词：NANO-GOLD carbon fiber electrode dopamine. 

分 类 号：Q593.2[生物学—生物化学] O646[理学—物理化学]