Electrochemical Behaviors of Ascorbic Acid and Uric Acid in Ionic Liquid

Cyclic voltammetric measurements at platinum electrode have been carried out to investigate the electrochemical oxidation of ascorbic acid and uric acid in ionic liquid, bmim]BF₄]. It is important that a typical redox couple of ascorbic acid was obtained and it is oxidized to dehydroascorbic acid in bmim]BF₄]. However, there is no electron-transfer for uric acid and no electrochemical oxidation carried out in the same ionic liquid. It provides a new way to eliminate the interfering between ascorbic acid and uric acid in the study of the electrochemical behaviors for them.