| 钴(II)与色氨酸极谱催化前波的研究 |
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| 引用本文： | 李玲,高小霞.钴(II)与色氨酸极谱催化前波的研究[J].化学学报,1992,50(1):39-43. |
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| 作者姓名： | 李玲 高小霞 |
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| 作者单位： | 北京大学化学系，北京大学化学系 北京 100871中国石化总公司石油化工科学研究院，北京 100871 |
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| 摘 要： | 对钴(II)离子与色氨酸在H~3BO~3-NaOH(pH=9)缓冲底液中的极谱催化前波进行了形成条件、吸附性能和电极还原过程的研究。
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| 关 键 词： | 色氨酸 电极 反应机理 形成 硼酸 极谱分析 钴络合物 催化波 氢氧化钠 还原过程 |
Study on the polarographic prewave of Co(II) with tryptophan |
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| Abstract: | A new polarog. prewave of Co(II) with tryptophan (Trp) in borate buffer (pH = 9) is reported. The adsorption characteristics of tryptophan and its complex Co(II)-Trp, which was formed at the surface of static mercury drop electrode were investigated. The complex has a composition of 1:1 and corresponds to a prewave, while another complex of composition 1:2 may be formed at a more neg. potential than the reduction potential of the hydrated Co(II) ion. By the method of double-step chronocoulometry, the area of the adsorbed 1:1 complex was found to be 0.97 nm2. |
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| Keywords: | TRYPTOPHAN ELECTRODE REACTION MECHANISM FORMATION BORIC ACID POLAROGRAPHIC ANALYSIS COBALT COMPLEX CATALYTIC WAVE SODIUM HYDROXIDE REDUCTION PROCESS |
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