The Study on the Electrochemical Behaviour of Nile Blue A Modified Carbon Fiber Microcylinder Electrode

Chem. J. Chinese Universities ›› 1995, Vol. 16 ›› Issue (8): 1200.

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The Study on the Electrochemical Behaviour of Nile Blue A Modified Carbon Fiber Microcylinder Electrode

JU Huang-Xian, DONG Ling, CHEN Hong-Yuan

Department of Chemistry, Nanjing University, Nanjing, 210093

Received:1994-08-30 Revised:1995-01-25 Online:1995-08-24 Published:1995-08-24

Abstract

Abstract: The functional group-COOH on carbon fiber microcylinder electrode(CFMCE)was formed by electrochemical oxidation with cyclic voltammetry, and the Nile blue Amodified CFMCE was manufactured by means of electrostatic attraction. The electrochemical behaviour of the modified electrode was studied,and its stability was discussed.The apparent standard electron transfer rate constant and charge transfer coefficient of fixed Nile blue Aat various pH, and the number of H⁺participating in electrode reaction were determined.The experiments indicated the modified electrode can catalyze the electrode reaction of hemoglobin at carbon fiber microcylinder electrode.

Key words: Carbon fiber microelectrode, Chemically modified microelectrode, Nile blue A, Hemoglobin, Electrocatalysis

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JU Huang-Xian, DONG Ling, CHEN Hong-Yuan. The Study on the Electrochemical Behaviour of Nile Blue A Modified Carbon Fiber Microcylinder Electrode[J]. Chem. J. Chinese Universities, 1995, 16(8): 1200.

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The Study on the Electrochemical Behaviour of Nile Blue A Modified Carbon Fiber Microcylinder Electrode

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