【摘要】 目的 :测定不同地理种源秦皮的树皮及叶中秦皮甲素和秦皮乙素的含量。方法 :采用HPLC法 ,以乙腈 水 (15∶85 )为流动相 ,使用NovapakC18柱 ,检测波长 348nm ,外标法。结果 :进样量与峰面积线性关系良好 ,秦皮甲素与秦皮乙素的r值分别为 0 .9992 ,0 .9994 ,平均回收率分别为 98.2 % ,99.2 % ,RSD分别为 2 .2 4 % ,2 .15 %。因地理种源不同而造成的秦皮质量差异明显存在 ,陕西产秦皮质量上乘。结论 :本法操作快速、简便、易行 ,精密度、重复性、稳定性好 ,适用于秦皮含量的分析测定。更多还原

【Abstract】 Objective: To determine the contents of aesculin and aesculetin in periderms and leaves of Cortex Fraxini among differnet provenances. Methods: HPLC was used with acetonitrile-water(15∶85) as the mobile phase and detected wavelength at 348nm. C 18 column was adopted. Results: The calibration curves were linear. The value of correlation coefficient were 0.9992 and 0.9994, respectively. The average recovery of aesculin was 98.2% and aesculetin was 99.2%. RSD were 2.24% and 2.15%, respectively. The quality differences of Cortex Fraxini among different provenances were remarked. The quality of Cortex Fraxini from Shanxi province was the best. Conclusion: The method is applied in determination and analytics of content of Cortex Fraxini and is rapid, simple and easy to carry out. The method is with the feature of accuracy, repetition and stability.更多还原