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KMID : 1059519950390010029
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Journal of the Korean Chemical Society
1995 Volume.39 No. 1 p.29 ~ p.34
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Rates and Mechanism of the Oxidation of l-Ascorbic Acid with Cu(Ⅱ)-Polyamine Complexes
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Kim Sun-Deuk
Park Jung-eun
Jang Ki-Ho
Shin Han-Chul
Kim Chang-Su
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Abstract
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The rates for the oxidation reaction of l-ascorbic acid by Cu(Ⅱ)-polyamine complexes were measured by Onish's method at the pH 4.6. The oxidation process of l-ascorbic acid is proposed to occur by the inner-sphere mechanism that involves the formation of a Cu(Ⅱ)-ascorbic acid complex and electron transfer at the rate-determining step.
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