| 胱氨酸的极谱催化波研究 |
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| 引用本文： | 过玮,宋俊峰.胱氨酸的极谱催化波研究[J].西北大学学报,1997,27(5):397-400. |
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| 作者姓名： | 过玮 宋俊峰 |
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| 作者单位： | 西北大学分析科学研究所 |
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| 摘 要： | 用循环伏安法、线性变位单扫描极谱法等研究证明，碘酸钾存在下胱氨酸的极谱催化波是一个有吸附的平行催化波。与其氢催化波不同，在该极谱催化波体系中，胱氨酸自身作为去极剂被还原产生含硫自由基，这个含硫自由基被ＫＩＯ３及其各种氧化价态的活泼基团氧化再生成胱氨酸。另外，讨论了碘酸钾的氧化、铵离子的增敏、汞电极的作用以及胱氨酸浓度的影响。
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| 关 键 词： | 胱氨酸 氨基酸 碘酸钾 极谱催化波 |
Polarographic Catalytic Wave of Cystine in the Presence of KIO 3 |
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| Guo Wei,Song Junfeng,Zhao Mingxiao,Zhao Yafeng.Polarographic Catalytic Wave of Cystine in the Presence of KIO 3[J].Journal of Northwest University(Natural Science Edition),1997,27(5):397-400. |
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| Authors: | Guo Wei Song Junfeng Zhao Mingxiao Zhao Yafeng |
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| Abstract: | It was provided by cyclic voltammetry and linear sweep polarography that the polarographic catalytic wave of cystine in the presence KIO 3 is parallel one with adsorption, differing from the well known hydrogen catalytic wave, in which the cystine itself as depolarizer is reduced to produce a thinyl free radical, and the free radical is oxidized by KIO 3 and its active species of various oxidation states to regenerate a cystine. In addition, the oxidation of KIO 3, the enhancement of ammonium ion, the function of mercury electrode and the influence of cystine concentration were discussed. |
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| Keywords: | cystine amino acid KIO 3 polarographic catalytic wave |
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