[关键词]
[摘要]
目的 建立快速高分离度液相色谱(RRLC)同时测定肚痛健胃整肠丸中甘草苷、橙皮苷和甘草酸含量的方法。方法 采用BDS HYPERSIL C18(4.6 mm × 100 mm,2.4 μm)色谱柱;流动相为乙腈-0.2 %磷酸,梯度洗脱;流速为1.0 mL·min-1;检测波长为0~9 min,276 nm;9~14 min,250 nm;柱温为25 ℃;进样体积为4.0 μL,检测器响应时间1 s。结果 样品中甘草苷、橙皮苷和甘草酸在进样量分别为0.0112~0.2800 μg、0.0435~1.0875 μg、0.0630~1.5750 μg范围内有良好的线性关系(r = 0.9999)。平均回收率分别为99.1 %,99.66 %,99.26 %(n=6);RSD分别为0.79 %,1.61 %,0.99 %。结论 本方法可在较短的时间内快速得到准确的结果,有效控制肚痛健胃整肠丸的产品质量。
[Key word]
[Abstract]
Objective To establish a rapid resolution liquid chromatography(RRLC) method for the determination of liquiritin,hesperidin and glycyrrhizic acid in Dutong Jianwei Zhengchang Pills. Methods The separation was performed on BDS HYPERSIL C18(4.6 mm×100 mm,2.4 μm) column. The mobile phase consisted of acetonitrile-0.2 %phosphoric acid with gradient elution at the flow rate of 1.0 mL·min-1. The detection wavelength was 276 nm during 0~9 min and 250 nm during 9~14 min. The column temperature was kept at 25 ℃,injection volume was 4.0 μL,and the response time was 1 s. Results Liquiritin,hesperidin and glycyrrhizic acid were completely separated. The linear ranges of liquiritin,hesperidin and glycyrrhizic acid were 0.0112~0.28μg,0.0435~1.0875 μg and 0.0630~1.575 μg,respectively. The average recoveries(n=6) of liquiritin,hesperidin and glycyrrhizic acid were 99.1 %(RSD=0.79 %) 99.66 %(RSD=1.61 %) and 99.26 %(RSD=0.99 %) respectively. Conclusion The developed RRLC method is simple,rapid,precise and accurate. It can be used for quality control of Dutong Jianwei Zhengchang Pills.
[中图分类号]
R284.1
[基金项目]