Citation: He Xing LI, Ye Ping XU, Ming Hui WANG. Cu²⁺-Catalyzed Oscillatory Oxidation of Ascorbic Acid by O₂ Flow[J]. Chinese Chemical Letters, ;2001, 12(8): 715-718. shu

Cu²⁺-Catalyzed Oscillatory Oxidation of Ascorbic Acid by O₂ Flow

Department of Chemistry, Shanghai Normal University, Shanghai 200234

Received Date: 20 January 2001

Fund Project: This work was supported by Shanghai Natural Science Foundation (98 QMA 11402).

A novel heterogeneous oscillator, the Cu²⁺-catalyzed oscillatory oxidation of ascorbic acid (Vitamin C) in aqueous solution by O₂ flow was reported. Both the potential oscillations on Pt-electrode corresponding to [Cu²⁺] and the absorbance oscillations at λ=260 nm corresponding to [ascorbic acid] were observed. Oscillations in the completely homogeneous system were also observed. Effects of several factors on the oscillations were investigated.
- Organic-O₂ oscillators,
- heterogeneous and homogeneous oscillators,
- Cu²⁺,
- O₂ flow,
- ascorbic acid.
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