高速逆流色谱法分离纯化红景天苷、葛根素和淫羊藿苷3种标准样品

目的采用高速逆流色谱技术分离纯化红景天苷、葛根素和淫羊藿苷3种标准样品。方法采用溶剂体系正丁醇:乙酸乙酯:水(2:3:5,V:V:V)分离红景天粗提物;采用溶剂体系正丁醇:乙酸乙酯:水(1:2:3,V:V:V)分离葛根粗提物;采用氯仿:甲醇:水(4:3.5:2,V:V:V)分离淫羊藿苷粗提物,并采用高效液相色谱法对所得单体进行纯度检测。结果所得红景天苷、葛根素、淫羊藿苷标准样品纯度分别为98.9%、99.8%和99.5%。将核磁共振(nuclear magnetic resonance,NMR)13C-NMR数据归属并与相关文献比对,进一步确认了该3种物质的结构。结论红景天苷、葛根素、淫羊藿苷3种样品满足GB/T 15000.3-2008标准样品工作导则的要求,可用于相关药品检测方法的校正和相关产品的质量控制。

Separation and purification of salidroside, puerarin and epimedium glycoside by high-speed counter current chromatography

Objective To establish a method for separation and purification of salidroside, puerarin and epimedium glycoside by high-speed counter current chromatography (HSCCC). Methods The HSCCC solvent systems of N-butanol:ethyl acetate:water (2:3:5,V:V:V), N-butanol:ethyl acetate:water (1:2:3, V:V:V) and chloroform:methyl alcohol:water (4:3.5:2, V:V:V) were used for isolation of salidroside, puerarin and epimedium glycoside, respectively. The purities of the end products were measured by high performance liquid chromatography (HPLC). Result The purities of salidroside,puerarin and epimedium glycoside were 98.9%, 99.8%, and 99.5%, respectively. The structures of the target compounds were furtherly identified by data of 13C-nuclear magnetic resonance (13C-NMR) and comparison with the related literature. Conclusion The reference materials of salidroside, puerarin and epimedium glycoside can conform to directives of the reference materials of GB/T 15000.3-2008, which can be used for method validation and quality control of regarding drug products.