摘要:
目的 测定葫芦素片中葫芦素B的含量。 方法 采用高效液相色谱法,应用Waters Symmetry C18(250 mm×4.6 mm,5.0 μm)色谱柱,流动相:乙腈-水(51:49),流速:1.0 ml/min,柱温:25℃,检测波长:228 nm。 结果 葫芦素B的回归方程:Y=1 067.3C-0.508 4(r=0.999 9),平均回收率为99.39%(n=6),RSD为0.56%,说明该法具有良好的回收率。 结论 用HPLC法测定葫芦素片中葫芦素B的含量,方法简便,重复性好,结果准确。
Abstract:
Objective To determina the content of cucurbitacin B in cucurbitacins. Methods The highly effective liquid phase chromatography was used,with Waters Symmetry C18 (250 mm× 4.6 mm 5 μm) column.The mobile phase was acetonitrile-water (51:49), the flow rate was 1 ml/min, column temperature was 25℃, the detection wavelength was 228 nm. Results Cucurbitacin B regression equation: Y=1 067.3C-0.508 4 (r=0.999 9), the average recovery rate was 99.39%(n=6), RSD was 0.56%, which showed that this method had a good recovery rate. Conclusion The HPLC method for the determination of content of cucurbitacin B in cucurbitacins was simple, reproducible, accurate.