【作者】 李彦超； 蔡宝昌； 李伟东； 狄留庆；

【Author】 LI Yanchao, CAI Baochang, LI Weidong, DI Liuqing( Nanjing College of Traditional Chinese Medicine,Nanjing 210029)

【机构】 南京中医药大学；

【摘要】 目的建立马钱子总生物碱的RP-HPLC测定方法,探讨其提取分离的优化条件。方法以士的宁、马钱子碱为定量指标成分,通过对马钱子氨性氯仿提取、水提取、酸水提取和酸性乙醇提取等提取方法的比较与筛选,确定乙醇浓度、pH值、提取时间、溶剂用量为影响因素,并以L9(34)正交设计表安排试验。结果马钱子药材细粉加6倍量pH=5的50%乙醇提取3次,每次1h为马钱子总生物碱的最佳提取工艺。结论优选的提取条件效率高,可增加马钱子药材的利用率。更多还原

【Abstract】 Objective To establish the RP- HPLC method for the determination of total alkaloids in Semen Strychni and to optimize its extraction conditions by orthogonal design. Methods With strychnine and brucine content as the indexes, ethonal volume, ethonal concentration , pH and extracting time were screened and L9(34) orthogonal test were applied. Results The optimal extraction conditions were as follows: refluxing and extracting with 6- fold 50 % alcohol (pH=5) for 3 times, one hour for each time. Conclusion The optimized condition is the best for the extraction of alkaloids and this increase the availability of Semen Strychni.更多还原