HPLC测定彝肤软膏中重楼皂苷Ⅰ,Ⅱ的含量

目的：建立同时测定彝肤软膏中重楼皂苷Ⅰ、重楼皂苷Ⅱ高效液相色谱分析方法。方法：采用高效液相色谱法对彝肤软膏中重楼皂苷Ⅰ、重楼皂苷Ⅱ同时进行含量测定：Hypersil ODS2(4.6 mm×150 mm,5 μm)；预柱：IBBM-612111,C-18柱芯；乙腈-0.02%磷酸(43∶57)为流动相,流速1 mL·min^-1,检测波长203 nm,柱温40 ℃。结果：重楼皂苷Ⅰ在0.102 4～3.2 μg线形关系良好,r=0.999 8,平均回收率97.4%,RSD 1.8%(n=6)；重楼皂苷Ⅱ在0.064～2.0 μg线形关系良好,r=0.999 9,平均回收率101.4%,RSD 1.0%(n=6)。结论：本方法准确可靠、重复性好,能有效控制该制剂的质量。

Studies on quality standard of Yifu ointment

OBJECTIVE: To develop a method for the determination of Chonglou saponin I and Chonglou saponin II in Yifu ointment. METHOD: The chromatographic separation was performed on Hypersil ODS2 C18 column (4.6 mm x 150 mm, 5 microm) and IBBM-612111 ODS C18 guard column. Acetonitrile-0.02% phosphoric (43:57) as mobile phase. The flow rate was 1 mL min(-1) and column temperature was set at 40 degrees C. The UV detection wavelength was set 203 nm. RESULT: Chonglou saponin I showed a good linear relationship at a range of 0.1024-3.2 microg, r =0.9998, the average recovery was 97.4%, and RSD was 1.8% (n = 6); Chonglou saponin II showed a good linear relationship at a range of 0.064-2.0 microg, r = 0.9999, the average recovery was 101.4%, and RSD was 1.0% (n =6). CONCLUSION: The method is accurate with the good reproducibility and can be used for the quality control of Yifu Ointment.