一测多评法测定布渣叶总黄酮部位中8种黄酮苷成分

Simultaneous determination of eight flavone glycosides in total flavonoids fraction of Microcos paniculata using quantitative analysis of multi-components by single marker method

目的建立一测多评法(QAMS)同时测定布渣叶总黄酮部位中多种化学成分的方法,用于其质量控制。方法采用QAMS,以牡荆苷对照品为参照,计算芹菜素-6,8-二-C-葡萄糖苷、芹菜素-6-C-阿拉伯糖-8-C-葡萄糖苷、芹菜素-6-C-葡萄糖-8-C-阿拉伯糖苷、芹菜素-6-C-木糖-8-C-葡萄糖苷、异牡荆苷、紫云英苷和异鼠李素-3-O-芸香糖苷的相对保留时间和相对校正因子;利用该相对较正因子计算其他7种黄酮苷的量。结果 8种黄酮苷的相对保留时间和相对校正因子有较好的重复性,以牡荆苷为参照,相对校正因子分别为1.01、0.60、0.76、2.02、1.05、1.14和2.42。10批布渣叶总黄酮部位中8种黄酮苷量的QAMS计算值与外标法测定值无显著差异。结论以牡荆苷为参照,采用QAMS能同时测定布渣叶总黄酮部位中8种黄酮苷的量,该方法简单、可靠,为其量效关系研究和制剂开发提供了参考。

Objective To establish a method for simultaneous determination of eight flavone glycosides in total flavonoids fraction ofMicrocos panicμLata. Methods A new method, quantitative analysis of multi-components by single marker（QAMS）, was established using vitexin as reference substance. The corresponding relative correction factors of apigenin-6,8-di-C-β-D-glucopyranoside, apigenin-6-C-α-L-arabino-pyranosyl-8-C-β-D-glucopyranoside, apigenin-6-C-β-D-glucopyranosyl-8-C-α-L-arabinopyranoside, apigenin-6-C-β-D-xylopyranosyl-8-C-β-D-glucopyranoside, isovitexin, kaempferol-3-O-β-D-glucopyranoside, and isorhamnetin-3-O-β-D-rutinoside compared with vitexin were calculated. Then, the contents of eight flavonoid glycosides were determined. Results The relative retention time and relative correction factors of the eight flavone glycosides were repeatedly and the relative correction factors of the other seven flavonoid glycosides were 1.01, 0.60, 0.76, 2.02, 1.05, 1.14, and 2.42, respectively. There were no significant differences in the results between ESM and QAMS method for 10 batches of extract. Conclusion The established QAMS method for simultaneous determination of eight flavone glycosides is simple and robust, and can be used for related research and quality control of the total flavonoids fraction of M. panicμLata.