| 一种解毒健脾中药驱除有毒重金属的机理研究 |
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| 引用本文： | 朱志良,乔俊莲,陆国弟,陈与德,孙爱贞. 一种解毒健脾中药驱除有毒重金属的机理研究[J]. 环境科学, 1999, 20(3): 63-65 |
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| 作者姓名： | 朱志良 乔俊莲 陆国弟 陈与德 孙爱贞 |
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| 作者单位： | [1]同济大学化学系 [2]上海中医药大学 |
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| 摘 要： | 在３８．５±１℃，硝酸钾维持离子强度为０．１的条件下，用ｐＨ电位滴定法测定了一种解毒健脾中药有效成分与铅、镉、汞等离子形成的各各配合物的表观稳定常数，得到了在不同ｐＨ条件下该中该药与金属离子混合体系中各配合物组分的物种分布图，发现在与人体生理ｐＨ相近的条件下，该中药与铅、镉、汞等离子有良好的结合能力，其排除体内有毒重金属的效果远好于传统的ＥＤＴＡ－Ｚｎ盐，并且对体内必需微量元素Ｚｎ的存在不会产生明
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| 关 键 词： | 中药 解毒药 重金属 pH滴定 表观稳定常数 机理 |
| 收稿时间： | 1998-08-16 |
Mechanism Study of One Kind of Antidotal Traditional ChineseMedicine on Excluding Poisonous Heavy Metals |
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| Zhu Zhiliang,Qiao Junlian,Lu Guodi,Chen Yude and Sun Aizheng. Mechanism Study of One Kind of Antidotal Traditional ChineseMedicine on Excluding Poisonous Heavy Metals[J]. Chinese Journal of Environmental Science, 1999, 20(3): 63-65 |
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| Authors: | Zhu Zhiliang Qiao Junlian Lu Guodi Chen Yude Sun Aizheng |
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| Affiliation: | Dept. of Chemistry, Tongji University, Shanghai 200092, China;Dept. of Chemistry, Tongji University, Shanghai 200092, China;Dept. of Chemistry, Tongji University, Shanghai 200092, China;Dept. of Chemistry, Tongji University, Shanghai 200092, China;Shanghai Chinese Medicine University, Shanghai 200032 |
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| Abstract: | A pHpotentiometric titration method was used to determine the acid dissociation constants of the antidotal traditional Chinese medicine at 38501 and ionic strength I=01. The stability constants of the complexes of this medicine with Pb2+,Cd2+,Hg2+ were also determined. The distribution of complexes of this antidotal Chinese medicine with Pb2+,Cd2+,Hg2+ at different pH were obtained. It was found that this medicine has a better effect for excluding the heavy metal ions in human boby than EDTAZn salt. The excluding mechanism of above heavy metal ions with this medicine was discussed on the opinion of coordination chemistry. |
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| Keywords: | Chinese medicine detoxify heavy metal pHpotentiometric titration stability constants coordination chemistry. |
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