In this paper, it comes true that the system of HSCCC coupled with ESI MS/MS is utilized to on line separate, purify and detect tanshinoneⅡA from the ethyl ester crude extract of \%Salvia miltiorrhiza\% Bunge, which ...In this paper, it comes true that the system of HSCCC coupled with ESI MS/MS is utilized to on line separate, purify and detect tanshinoneⅡA from the ethyl ester crude extract of \%Salvia miltiorrhiza\% Bunge, which is at purity of 98% in HPLC analysis.展开更多
芦荟素是芦荟叶中主要的蒽醌类成分,通常以芦荟素A和B两种非对映异构体形式并存,目前已成为许多芦荟产品质量控制指标之一。采用高速逆流色谱和硅胶柱色谱结合的方法,从老芦荟干粉中分离制备了高纯度的芦荟素A(纯度为98%)和芦荟素B(纯度...芦荟素是芦荟叶中主要的蒽醌类成分,通常以芦荟素A和B两种非对映异构体形式并存,目前已成为许多芦荟产品质量控制指标之一。采用高速逆流色谱和硅胶柱色谱结合的方法,从老芦荟干粉中分离制备了高纯度的芦荟素A(纯度为98%)和芦荟素B(纯度为96%)样品,并采用快原子轰击质谱(FAB-M S)和核磁共振氢谱(1H NMR)以及GOE SY(grad ien t-enhanced nuc lear O verhau ser e ffec t spec tro scopy)等方法对所得的两个芦荟素异构体的立体构象进行了确认。该法具有制备量大和分离效率高的特点。展开更多
文摘In this paper, it comes true that the system of HSCCC coupled with ESI MS/MS is utilized to on line separate, purify and detect tanshinoneⅡA from the ethyl ester crude extract of \%Salvia miltiorrhiza\% Bunge, which is at purity of 98% in HPLC analysis.
文摘芦荟素是芦荟叶中主要的蒽醌类成分,通常以芦荟素A和B两种非对映异构体形式并存,目前已成为许多芦荟产品质量控制指标之一。采用高速逆流色谱和硅胶柱色谱结合的方法,从老芦荟干粉中分离制备了高纯度的芦荟素A(纯度为98%)和芦荟素B(纯度为96%)样品,并采用快原子轰击质谱(FAB-M S)和核磁共振氢谱(1H NMR)以及GOE SY(grad ien t-enhanced nuc lear O verhau ser e ffec t spec tro scopy)等方法对所得的两个芦荟素异构体的立体构象进行了确认。该法具有制备量大和分离效率高的特点。
