北柴胡质量控制研究

Quality contol of Bupleurum chinense

目的对北柴胡质量进行控制。方法分析采用VenusilXBPC_(18)色谱柱(250mm×4.6mm,5μm);流动相乙腈-水,梯度洗脱;体积流量1.0mL/min;柱温35℃;检测波长210nm。建立HPLC指纹图谱,测定柴胡皂苷A、柴胡皂苷B2、柴胡皂苷C、柴胡皂苷D、柴胡皂苷E、柴胡皂苷F、6″-O-乙酰基柴胡皂苷A的含量,进行主成分分析。结果12批药材指纹图谱中有13个共有峰,相似度0.970~0.995。7种成分在各自范围内线性关系良好(R^(2)≥0.9998),平均加样回收率90.75%~100.91%,RSD1.6%~4.0%。内蒙古、山西产药材中各成分含量接近。结论该方法精密、准确、稳定,可用于北柴胡质量评价。

AIM To control the quality of Bupleurum chinense DC.METHODS The analysis was performed on a 35℃thermostatic Venusil XBP C_(18) column(250 mm×4.6 mm,5μm),with the mobile phase comprising of acetonitrile⁃water flowing at 1.0 mL/min,and the detection wavelength was set at 210 nm.The HPLC fingerprints were established,after which the contents of saikosaponin A,saikosaponin B2,saikosaponin C,saikosaponin D,saikosaponin E,saikosaponin F and 6″⁃O⁃acetylsaikosaponin A were determined,and principal component analysis was made.RESULTS There were thirteen common peaks in the fingerprints for twelve batches of medicinal materials with the similarities of 0.970-0.995.Seven constituents showed good linear relationships within their own ranges(R^(2)≥0.9998),whose average recoveries were 90.75%-100.91%with the RSDs of 1.6%-4.0%.Various constituents demonstrated similar contents in medicinal materials originated in Inner Mongolia and Shanxi.CONCLUSION This precise,accurate and stable method can be used for the quality evaluation of B.chinense.