Chem. J. Chinese Universities ›› 1992, Vol. 13 ›› Issue (3): 325.

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The Electrocatalytic Oxidation of Ascorbic Acid on Nickel Hexacyanoferrate Film Modified Electrode

WANG Sheng-fu, JIANG Mian, ZHOU Xing-yao   

  1. Department of Chemistry, Wuhan University, Wuhan, 430072
  • Received:1991-02-05 Online:1992-03-24 Published:1992-03-24

Abstract: The nickel hexacyanoferrate (NiHCF) film modified electrode was made by electrochemically depositing method.The electrocatalytic oxidation of ascorbic acid (AH2) on the electrode was described.The oxidation peak potential shifts negatively 300 mV.The modified electrode can be used for determination of ascorbic acid in the concentration range of 1.0× 10-7~1.0×10-2 mol/L.This method has been applied successfully to the analysis of ascorbic acid in fruits and vegetables.

Key words: Nickel hexacyanoferrate, Chemically modified electrode, Ascorbic acid

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