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Sensors 2006, 6(2), 80-89; doi:10.3390/s6020080
Article
Electrochemical Behavior of Epinephrine at a Glassy Carbon Electrode Modified by Electrodeposited Films of Caffeic Acid
School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
* Author to whom correspondence should be addressed.
Received: 20 April 2005 / Accepted: 23 January 2006 / Published: 24 February 2006
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Abstract: A stable electroactive thin film of poly(caffeic acid) has been deposited on thesurface of a glassy carbon electrode by potentiostatic technique in an aqueous solutioncontaining caffeic acid. The voltammetric behavior of epinephrine (EP) at the poly(caffeicacid) modified glassy carbon electrode was studied by cyclic voltammetry. The poly(caffeicacid) modified electrode exhibited a promotion effect on the oxidation of EP. In a pH 7.4phosphate buffer, the anodic current increased linearly with the concentration of EP in therange from 2.0 × 10−6 to 3.0 × 10−4 mol L−1 and the detection limit for EP was 6.0 × 10−7mol L−1. The proposed method can be applied to the determination of EP in practicalinjection samples with simplicity, rapidness and accurate results.
Keywords: Caffeic acid; Electrodeposited films; Epinephrine; Chemically modified electrode
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MDPI and ACS Style
Ren, W.; Luo, H.Q.; Li, N.B. Electrochemical Behavior of Epinephrine at a Glassy Carbon Electrode Modified by Electrodeposited Films of Caffeic Acid. Sensors 2006, 6, 80-89.
AMA StyleRen W, Luo HQ, Li NB. Electrochemical Behavior of Epinephrine at a Glassy Carbon Electrode Modified by Electrodeposited Films of Caffeic Acid. Sensors. 2006; 6(2):80-89.
Chicago/Turabian StyleRen, Wang; Luo, Hong Q.; Li, Nian B. 2006. "Electrochemical Behavior of Epinephrine at a Glassy Carbon Electrode Modified by Electrodeposited Films of Caffeic Acid." Sensors 6, no. 2: 80-89.