大孔吸附树脂分离纯化鲜地黄叶中梓醇的初步研究

目的：选择合适的大孔吸附树脂对鲜地黄叶中梓醇进行富集纯化。方法：以高效液相为检测手段,梓醇含量为检测指标。采用吸附和解吸试验考察了12种大孔吸附树脂对梓醇的吸附解吸性能,筛选出H103树脂进行了分离纯化研究。结果：H103树脂对梓醇具有很好的吸附解吸性能,其纯化条件为上样液浓度1mg/ml,上样体积2BV,上样吸附速度1～2BV/h,洗脱速度1～3BV/h,10%乙醇洗脱8BV。结论：采用H103树脂分离纯化鲜地黄叶中梓醇,可简化步骤,降低成本,方法简单可行。

Separation and purification of catalpol from leaves of Rehmannia by macroporous adsorption resins:a priliminary study

Objective:To obtain the optimal conditions for separating catalpol from leaves of Rehmannia by selecting appropriate macroporous adsorption resins.Methods:The detection indication was the content of catalpol, which was determined by HPLC method. Twelve different kinds of macroporous adsorption resins were studied on the static capacity of adsorption and desorption, and H103 resin was selected for the research of separation and purification.Results:The H103 resin had a good capacity for adsorption and desorption.The best process of purifying catalpol by H103 resin was 1mg/ml concentration, the adsorption rate of 1-2 BV/h,the flow rate of 1-3 BV/h, and 8 BV with 10% alcohol.Conclusion:The method is simple and available, which can simplify the production process and lower costs.