用色谱和ESI-MS方法考察四物汤提取部位的化学成分

目的 :为了探讨四物汤补血作用的物质基础 ,制备 3种不同极性的四物汤提取部位 (C1,C2 ,C3) ,对这3种部位的化学成分特点进行考察。方法 :综合运用高效薄层色谱 (HPTLC)、高效液相色谱 (HPLC)、电喷雾离子化质谱 (ESI-MS) 3种方法对四物汤的C1,C2 ,C3部位及四味单药相应部位进行分析和比较。结果 :四物汤部位C1中含有种类丰富的成分 ,包括阿魏酸、芍药苷等 ,并且应含有藁本内酯 ,而糖类物质极少 ;C2的成分以芍药苷、单糖、二糖为主 ;C3的成分以单糖和二糖为主。结论 :综合运用色谱和直接输注ESI-MS ,可以获得关于方剂提取部位组成的丰富信息。不同方法的结果可以相互比较 ,相互印证 ,使所获得的信息比单一方法更全面更确切。本研究的结果对于探讨四物汤补血物质基础具有参考意义。

Investigation of constituents in Siwu Tang fractions by chromatographic and ESI-MS methods

Objective:In order to discuss the chemical foundation of hematopoietic effect of Siwu Tang, three fractions of different polarities (C1, C2 and C3) were prepared from Siwu Tang and the characteristics of these fractions' constituents were investigated. Method:Fraction C1, C2 and C3 of Siwu Tang and corresponding fractions of Siwu Tang's four ingredient drugs were analyzed and compared, synthetically using the three methods of high performance thin layer chromatography (HPTLC), high performance liquid chromatography (HPLC) and direct infusion electrospray ionization mass spectrometry (ESI-MS). Result:Fraction C1 of Siwu Tang contained various types of compounds, including ferulic acid, paeoniflorin and supposedly ligustilide, etc. Saccharide content in fraction C1 was very little. The major constituents in fraction C2 of Siwu Tang were paeoniflorin, monosaccaride and disaccharide. The major constituents in fraction C3 of Siwu Tang were monosaccaride and disaccharide. Conclusion:With synthetical chromatographic and direct infusion ESI-MS methods, abundant information on composition of fractions of traditional Chinese medicine formulas can be obtained. The results gained with different methods can be compared with each other and corroborate each other, so that the obtained information can be more comprehensive and more definite than that gained with single method. The results of this study are important as references for the discussion of the chemical foundation of hematopoietic effect of Siwu Tang.