| 不同离子在CCl_4引发自由基反应中的作用及其环境生物学意义 |
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| 引用本文： | 李海蓉,侯少范.不同离子在CCl_4引发自由基反应中的作用及其环境生物学意义[J].环境科学学报,2000(3). |
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| 作者姓名： | 李海蓉 侯少范 |
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| 作者单位： | 中国科学院地理研究所!北京100101 |
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| 摘 要： | 报道了一种简便的CCl_4 体外引发自由基反应的模型 ,以小鼠肝匀浆脂质过氧化产物丙二醛 (MDA)的OD_(53 2nm) 值(MDA OD_(53 2nm)作为测定自由基反应的间接指标 ,研究了Hg~(2 ) 、Mn~(2 ) 、Ni~(2 ) 、Cd~(2 ) 、Cr3 、SeO3 2 -等离子和As2 O3 水溶液在CCl4 引发自由基反应体系中的作用 .结果表明 :Mn2 能显著抑制自由基的生成 ,Cr3 有一定的抑制作用 ,而Hg2 对自由基产生有明显促进作用 ,其它离子的作用不明显 .就CCl4 与无机离子相互作用的环境生物学意义进行了探讨 .
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| 关 键 词： | CCl_4 自由基 金属离子 环境生物学 |
The action of different kinds of ion on free radicals induced by carbon tetrachloride and its environmental biological significance |
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| LI Hairong,HOU Shaofan\.The action of different kinds of ion on free radicals induced by carbon tetrachloride and its environmental biological significance[J].Acta Scientiae Circumstantiae,2000(3). |
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| Authors: | LI Hairong HOU Shaofan\ |
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| Abstract: | The value of OD 532nm of malondialdehyed(MDA) formed by lipid peroxidation was used as an indirect index of reaction with free radicals.The roles of Hg 2 \,Mn 2 \,Ni 2 \,Cd 2 \,Cr 3 \,SeO\-3 2- and water solution of As\-2O\-3 in vitro system of CCl\-4 producing free radicals were studied.The results indicated that Mn 2 \,Cr 3 inhibited the production of free radicals induced by CCl\-4, but on the contrary,Hg 2 showed an enhancing effect,and the roles of other ions were ambiguous.The environmental biological significance of the reciprocity of CCl\-4 and inorganic ions was discussed. |
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| Keywords: | CCl\-4 free radicals metallic ions environmental biological significance |
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