摘要
采用乙醇－水为溶剂，加螯合剂ＥＤＴＡ，通过重结晶既去除甘草酸单铵盐中的有机杂质，也去除铁盐和其它一些重金属离子，收到了理想的效果。
Crude monoammonium glycyrrhizinate was recrystallized from 75% ethanol, using EDTA as a chelating agent to remove iron and other heavy metals. A product of more than 98.5% content was obtained for medicinal use.
出处
《中国医药工业杂志》
CAS
CSCD
北大核心
1998年第11期487-488,共2页
Chinese Journal of Pharmaceuticals
