Citation: Xiu Hui LIU, Yan ZHANG, Go Fang ZUO, Xiao Quan LU. Electrochemical Determination of Epinephrine with a Pyrolytic Graphite Electrode in the Presence of Ascorbic Acid and Dopamine[J]. Chinese Chemical Letters, ;2006, 17(5): 657-660. shu

Electrochemical Determination of Epinephrine with a Pyrolytic Graphite Electrode in the Presence of Ascorbic Acid and Dopamine

College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou 730070

Received Date: 22 August 2005

Fund Project: This work was supported by the National Natural Science Foundation of China (No.20335030), The Teaching and Research Award Program for Outstanding Young Teachers in Higher Education Institutions of MOE P.R.C., the Natural Science Foundation of Gansu (No.3ZS051- A25-023) and Key Laboratory of Ploymer Materials of Gansu Province.

A method for determination of epinephrine(EP) in the presence of ascorbic acid (AA)and dopamine (DA) with bare pyrolytic graphite electrodes has been described for the first time.In pH 7.0 phosphate buffer solution, the linear relationship was observed between the reduction peak current of EP and its concentration over the range from 1×10^-4 to 5×10^-7 mol/L, the related coefficient is 0.9992(N=8).
- Differential pulse voltammetry,
- epinephrine,
- ascorbic acid,
- dopamine,
- pyrolytic graphite electrodes
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