摘要:
目的 建立高效液相色谱法测定气管炎颗粒中黄芩苷的含量。 方法 采用HPLC法,色谱柱:ZORBAX SB-C18柱(4.6 mm×150 mm,5 μm),以甲醇-0.1%磷酸(47:53)为流动相,流速为1 ml/min,检测波长为280 nm。 结果 黄芩苷在6.63~210 μg/ml范围内呈良好线性关系(r=0.999 8,n=6),平均加样回收率为98.16%,RSD为1.89%。 结论 本法简便、灵敏、准确、重复性好,结果可靠,可有效地控制气管炎颗粒的质量。
Abstract:
Objective To establish a method of HPLC for the determination of baicalin in Qiguanyan granules. Methods HPLC was performed on ZORBAX SB-C18(4.6 mm×150 mm,5 μm) column with mobile phase consisted of methanol-0.1% phosphoric acid (47:53) at ambient temperature.The flow rate was 1.0 ml/min.The detection wavelength was 280 nm. Results Baicalin showed a good linearity in the range of 6.63-210 μg/ml(r=0.999 8,n=6),and the average recovery was 98.16% (RSD=1.89%). Conclusion This methods was simple,accurate,sensitive,reproducible and reliable,which was suitable for the content control of Qiguanyan granules.