Studies on Electrocatalytic Oxidation of Catechols and Ascorbic acid on the Polymeric Heme Film Modified Electrode

Abstract

Abstract: The polymeric heme film modified glassy carbon electrode (polyheme/GC) was prepared by cyclic voltammetry. The electrochemical behavior of catechols (catechol, dopamine, epinephrine) and ascorbic acid on the polyheme/GCelectrode has been investigated. The polyheme/GCelectrode has a good electrocatalytic oxidation to catechols and ascorbic acid. On the polyheme/GCelectrode, the oxidation peak currents of catechols and ascorbic acid increase and the oxidation peak potentials of catechols and ascorbic acid shift negatively about 180 mVand 370 mV,respectively, comparing with that on the GCelectrode. In the mixed solution containing catechols and ascorbic acid, the two oxidation peaks could be separated about 130 mVon the polyheme/GCelectrode.

Key words: Heme, Chemically modified electrode, Electrocalytic oxidation, Catechols, Ascorbic acid

CLC Number:

O657.1

TrendMD:

BAI Yan, MO Jin-Yuan, CHENG Qiang, ZHOU Yan-Hui . Studies on Electrocatalytic Oxidation of Catechols and Ascorbic acid on the Polymeric Heme Film Modified Electrode[J]. Chem. J. Chinese Universities, 1998, 19(12): 1943.

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Studies on Electrocatalytic Oxidation of Catechols and Ascorbic acid on the Polymeric Heme Film Modified Electrode

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