| 重金属致毒的化学机理 |
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| 引用本文： | 张笑一,潘渝生. 重金属致毒的化学机理[J]. 环境科学研究, 1997, 10(2): 45-49 |
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| 作者姓名： | 张笑一 潘渝生 |
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| 作者单位： | 1.贵州师范大学,贵阳 550002 |
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| 摘 要： | 结合Pb(Ⅱ)对Ca(Ⅱ)生理活性的抗拮,取代金属对锌酶活性的影响,以及Hg(Ⅱ)和Pb(Ⅱ)对巯基(—SH)的亲合而致毒等实例,论述了分子水平上的金属致毒机理中,生物大分子配体的特殊结构与金属离子的电子结构所起的重要作用
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| 关 键 词： | 毒性 结构 金属离子 生物分子配体 |
| 收稿时间： | 1996-11-13 |
Chemical Mechanism on the Toxicity of Heavy Metals |
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| ZHANG Xiaoyi and PAN Yusheng. Chemical Mechanism on the Toxicity of Heavy Metals[J]. Research of Environmental Sciences, 1997, 10(2): 45-49 |
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| Authors: | ZHANG Xiaoyi and PAN Yusheng |
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| Affiliation: | 1.Guizhou Normal University, Guiyang 5500022.Guiyang Environmental Protection Bureau, Guiyang 550002 |
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| Abstract: | This paper discusses significant effect of particular structure of biomolecular ligands and electronic structure of metal cation on the basic toxicity mechanism of heavy metals at the molecular level, which is supported on the examples such as an antagonism between Pb(II) and Ca(II) on the physiological activity, an influence of replacement metals on Zinc enzyme activity, an inordinately strong affinity of Hg(II) and Pb(II) toward thiohydroxy (-SH) resulted from toxicity. |
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| Keywords: | Toxicity Structure Metal cation Biomolecular ligand |
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