中药中砷的形态分析

Speciation analysis of arsenic in traditional Chinese medicine

在传统中药中有不少处方含有砷化合物如雄黄等,其砷总量超过有关重金属限量。砷的药理及可能产生的毒副作用均依赖于其在中药中存在的化学形态。对中药中砷的分析已不限于测定砷总量,开始转向砷形态分析。作者对中药中砷的形态分析方法及可能应用的技术加以总结,以助于人们找到最佳方法,从而正确评价中药中砷的作用。

Some of traditional Chinese medicine （TCM） contain arsenide, such as realgar. The total amount of arsenic in the TCM exceeds the limits according to related regulations. But the roles of arsenic in TCM or its side-effects depend on its species existed in those thempies, not the total amount of arsenic. Therefore, in recent years, the analysis of arsenic in TCM focuses on the species of arsenic. The present paper summarized some methods and techniques in the speciation analysis of arsenic in TCM, in order that optimal methods can be chosen and the roles of arsenic could be evaluated properly.