ESR Studies of Ascorbic Acid Free Radicals
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概要
- 論文の詳細を見る
One-electron oxidations of L-ascorbic acid and its analogs or derivatives were investigated by electron spin resonance (ESR). ESR spectra were obtained from compounds not substituted at 3-hydroxyl group. Two types of spectra were observed when Ti^<3+>-H_2O_2 system was used as the oxidizing agent. On the basis of the comparison of the ESR spectra obtained from the compounds examined with one another and their pH-profile, the radical structures and hyperfine couplings were determined. One type of spectrum corresponds to an anion radical and the other corresponds to a neutral species. Variation in line width and the finding that only an anion radical was detected when oxidizing reagents other than Ti^<3+>-H_2O_2 system was used, were interpreted in terms of the complex formation of radicals with metal ions coexisting in the reaction system.
- 公益社団法人日本薬学会の論文
- 1972-12-25
著者
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桐野 豊
Faculty Of Pharmaceutical Sciences Kyushu University:faculty Of Pharmaceutical Sciences The Universi
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管 孝男
Faculty of Pharmaceutical Sciences, University of Tokyo
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管 孝男
Faculty Of Pharmaceutical Sciences University Of Tokyo:(present Address)faculty Of Pharmaceutical Sc
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管 孝男
Faculty Of Pharmaceutical Sciences The University Of Tokyo
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