目的:建立酸枣仁合欢方(SHF)中总皂苷、芍药苷的含量测定方法及其皂苷部位的HPLC指纹图谱。方法:采用紫外分光光度法于545 nm波长处测定SHF中总皂苷的含量;采用高效液相法测定SHF中芍药苷的含量;利用HPLC梯度洗脱的方法进行色谱分离,对SHF皂苷部位进行指纹图谱研究。结果:在选定的紫外测定条件下,齐墩果酸在2.3~11.8μg/mL范围内线性关系良好(r1=0.9997),平均回收率为99.60%(n=9),RSD为1.07%;在选定HPLC色谱条件下,芍药苷在12.8~38.4μg/mL范围内线性关系良好(r2=0.9996),平均回收率为99.98%(n=9),RSD为1.81%;建立SHF皂苷部位指纹图谱,确定了13个共有峰,指认了4个化合物,测定的10批样品指纹图谱相似度均大于0.92。结论:该实验建立的方法简便易行、结果准确、重现性好,为较全面的评价与控制该复方的质量提供了依据。
Objective:To establish the method for determining total saponins and paeoniflorin in Suanzaoren Hehuan Formula( SHF) and an HPLC fingerprint of its saponins parts.Methods:The total saponins in SHF was determined by ultraviolet spectrophotometry at 545 nm.The content of paeoniflorin and the chromatographic fingerprints were determined by HPLC.Results:There was a good linear relationship in the range of 2.3~11.8 μg/mL for oleanolic acid( r 1=0.9997) of UV,and 12.8~38.4 μg/mL for paeoniflorin( r 2=0.9996) of HPLC.The average recovery of oleanolic acid and paeoniflorin was 99.60% and 99.98%,respectively.Thirteen peaks were selected as common peaks in fingerprint and four of them were recognized.Conclusion:The method is accurate,sensitive,rapid and suitable for quality control of this formula.