Citation: Hong ZHANG, Bao Kang JIN, Xiao Yan JIN. The Study of Electrochemical Behavior of Dopamine at Nano-gold Modified Carbon Fiber Electrode[J]. Chinese Chemical Letters, ;2003, 14(7): 737-739. shu

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

1.
Department of Chemistry, Fuyang Teachers College, Fuyang 236032;
2.
School of Chemistry and Chemical Engineering, Anhui University, Hefei 230039

Received Date: 26 August 2002

Fund Project: The authors gratefully acknowledge financial support from the Natural Science Foundation of Anhui Province and the Natural Science Foundation of Anhui Education Committee (2001kj185).

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 2.0×10^-6~1.5×10^-5mol/L and 1.0×10^-5~5.0×10^-4mol/L, respectively.
- nano-gold,
- carbon fiber electrode,
- dopamine
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