绵茵陈提取液的大孔树脂动态吸附工艺研究

目的:考察绵茵陈提取液在F型大孔树脂的动态吸附工艺。方法:以绵茵陈药液中绿原酸、吸光度结合HPLC指纹图谱为指标,考察其在F树脂的动态吸附及洗脱过程,确定最大上样量以及洗脱溶媒种类和用量。结果:动态吸附考察结果表明绵茵陈提取液在该树脂的最大上样量以绿原酸计为20.9mg/g干树脂,并确定5倍柱体积80乙醇为洗脱溶媒;重复验证实验表明该工艺在有效保留HPLC指纹图谱全成分的同时,使提取液的得膏率降低到2.5。结论:该精制工艺路线达到了富集有效成分的目的。

Kinetic adsorption of Herba Artemisiae scopariae extract by macroporous resin

AIM: To study the kinetic adsorption process in the use of the extraction of Herba Artemisiae scopariae. METHODS: In combination with caffeotannic acid and the absorbance, HPLC fingerprint of extract of Herba Artemisae scopariae was adopted as marker, to investigate the kinesis adsorb and elution process, the to determine the max quantity of physic liquor and the type and quantity of elution solvent. RESULTS: The max adsorption quantity of caffeotannic acid that could adsorb was 20.9 mg/g dry resin, and the elution solvent determined was five-fold column volume of 80% alcohol; The repeated experiment indicated that this process decressed to 2.5% yield of extract and meanwhile it retained the whole components of the HPLC fingerprint effectly. CONCLUSION: The kinetic adsorption can enrich the active components in Herba Artemisiae scopariae effectively.