目的柴胡为多基原药材,《中国药典》2010年版规定的柴胡包括柴胡Bupleurum chinense DC.和狭叶柴胡B.scorzonerifolium Willd.。以柴葛解肌汤为研究对象,对柴胡、狭叶柴胡配伍的复方进行化学成分比较,明确不同柴胡配伍对复方中其他成分的影响。方法首先采用HPLC法建立葛根素、芍药内酯苷、芍药苷、甘草苷、黄芩苷、汉黄芩苷和黄芩素7种化学成分的定量测定方法,并对不同柴胡配伍的柴葛解肌汤进行定量测定。结果线性范围内7种化合物的标准曲线呈良好线性关系,平均加样回收率均在94.1%~106.6%,所有化合物的精密度、重复性的RSD均小于2%,且样品在12 h内稳定性良好。不同柴胡配伍对柴葛解肌汤7种成分的量影响无显著性差异。结论所建立方法简单,重复性好,可用于柴葛解肌汤的质量控制,而不同柴胡配伍对柴葛解肌汤中其他成分及全方药理作用的影响值得进一步研究。
Objective Bupleuri Radix is a kind of medicinal material derived from many sources, and Bupleurum chinense and B. scorzonerifolium are described in Chinese Pharmacopoeia. In this study, the chemical constituents in Chaige Jieji Decoction (CJD) composed of B. scorzonerifoliurn or B. chinense were compared to elucidate the influence of different Bupleuri Radix on other components in CJD. Methods Firstly, an HPLC method for the simultaneous determination of seven constituents (puerarin, albiflorin, paeoniflorin, liquiritin, baicalin, wogonoside, and baicalein) in CJD was developed. Then CJD composed orB. scorzonerifolium or B. chinense was compared by the established method. Results Good linearity for the seven compounds was obtained, and the average recoveries ranged from 94.1% to 106.6%. The RSD values of all the precision and repeatability of the compounds were less than 2%, and the test sample was stable within 12 h. No significant differences were observed between the two different CJD. Conclusion The developed HPLC method is simple and repeatable, which is helpful for the quality control of CJD. The effects of different Bupleuri Radix compatibility on other ingredients in CJD and pharmacological activity of CJD deserve further study.