中药中重金属和残留农药去除方法研究进展

Research progress on techniques of removing heavy metals and pesticides from traditional Chinese medicine

目的为选择中药中重金属和残留农药的去除方法提供依据。方法根据近年的23篇文献,从去除中药中重金属技术及去除中药中残留农药技术两个方面进行综述。结果去除重金属的方法有吸附色谱分离法、吸附澄清法、超临界CO2配合萃取法;去除残留农药的方法有水洗法、炮制法、超临界CO2流体萃取法。结论色谱分离技术为很有前途的去除重金属的处理技术;超临界CO2流体萃取法对于去除中药中重金属和残留农药效果较好。

Objective To make a review on the techniques of removing heavy metals and pesticides from traditional Chinese medicine （TCM） for meeting international require. Methods Based on 23 references, the harm of heavy metal and pesticide and the techniques of removing them were reviewed. Results Chromatography, adsorption clarification and supercritical CO2 chelating extraction techniques were usually used for removing heavy metals. The methods used for removing pesticides were supercritical CO2 fluid extraction, washing and processing. Conclusions Chromatography is a promising technique in removing heavy metals; supercritical CO2 fluid extraction are effective technique both in removing heavy metals and pesticide.