The Electrochemical Behavior of Poly-3,4-ethyenedioxy-thiophene Modified Electrode and the Electrocatalytic Oxldation of Ascorbic Acid on the Electrode

Chem. J. Chinese Universities ›› 1995, Vol. 16 ›› Issue (1): 39.

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The Electrochemical Behavior of Poly-3,4-ethyenedioxy-thiophene Modified Electrode and the Electrocatalytic Oxldation of Ascorbic Acid on the Electrode

HOU Shi-Feng, FANG Hui-Qun, CHEN Hong-Yuan

Department of Chemistry, Nanjing University, Nanjing, 210093

Received:1994-02-01 Revised:1994-07-18 Online:1995-01-24 Published:1995-01-24

Abstract

Abstract: The electrochemical behavior of poly 3, 4-ethylenedioxy-thiophene modified electrode and the electrocatalytic oxidation of ascorbic acid (AH₂) on this electrode were investigated. The oxidation peak potential shifts, negatively by 220 mV. The relationship between the oxidation peak current of ascorbic acid and its concentration in the rang of 1.0× 10^-1─1.0×10^-5mol/Lis linear. The modified electrode can be applied to the determination of ascorbic acid in fruit and other biological samples.

Key words: Poly-3,4-ethylenedioxy-thiophene chemical modified electrode, Ascorbic acid, Electrocatalysis

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HOU Shi-Feng, FANG Hui-Qun, CHEN Hong-Yuan. The Electrochemical Behavior of Poly-3,4-ethyenedioxy-thiophene Modified Electrode and the Electrocatalytic Oxldation of Ascorbic Acid on the Electrode[J]. Chem. J. Chinese Universities, 1995, 16(1): 39.

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The Electrochemical Behavior of Poly-3,4-ethyenedioxy-thiophene Modified Electrode and the Electrocatalytic Oxldation of Ascorbic Acid on the Electrode

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