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

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Received: 20 April 2005; Accepted: 23 January 2006 / Published: 24 February 2006
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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 Style

Ren 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 Style

Ren, 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.

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