超临界CO_2配合萃取中药中重金属的研究进展  

Progress of Supercritical CO_2 Chelating Extraction of Heavy Metals from Chinese Traditional Medicines

作　　者：梁成满[1] 黄少烈[1] 李琼[2] 

机构地区：[1]华南理工大学化工与能源学院,广州510640 [2]华南理工大学化学科学学院,广州510640

出　　处：《化工进展》2005年第6期607-611,共5页Chemical Industry and Engineering Progress

基　　金：教育部高等院校博士点基金(No.20020561026);广东省自然科学基金重点项目(No.036556)联合资助。

摘　　要：综述了国内外采用超临界流体技术配合萃取中药中重金属的研究现状。介绍了中药中重金属的形态分析方法、重金属的存在形态与配合萃取的关系、超临界配合萃取的原理、配合剂的选择和回收利用、配合萃取过程的影响因素等。提出了有关于中药中微量重金属的化学形态、寻找合适的配合剂、超临界条件下配合萃取本身的机理等几个目前存在的问题,并对今后的研究趋势进行了展望。Progress of the study on chelating extraction of heavy metals from Chinese traditional (medicines) by supercritical fluid technology is reviewed.Speciation analysis of heavy metals in Chinese traditional medicines relation between existing speciating of heavy metals and chelating extraction concept of supercritical chelating extraction, choice and recovery of chelating agent (affecting) factors chelating extraction are introduced.Several (problems) about the chemical (speciation) of heavy metals in Chinese traditional medicines, the choice of apriate chelating agent and the mechanism of supercritical chelating extraction are put forward and the development (directions) are suggested.

关 键 词：超临界CO2 配合萃取 重金属 中药 形态分析 

分 类 号：TQ028.32[化学工程]