目的:完善卷柏的质量标准。方法:依据《中国药典》2010年版附录相关方法,对卷柏药材进行显微鉴别,对灰分、酸不溶性灰分进行检查。采用HPLC检测selaginellin和穗花杉双黄酮的含量,选用Waters Cosmosil C18柱(250 mm×4.6 mm id,5μm);检测波长:300、337 nm;流速:1 m L·min-1;柱温:30℃;流动相:乙腈-0.1%甲酸水梯度洗脱。结果:确定了卷柏药材的显微特征;酸不溶性灰分限度≤11.0%,总灰分限度≤15.0%;建立同时测定卷柏药材中穗花杉双黄酮和selaginellin的HPLC含量检测方法。结论:卷柏药材的显微鉴别,以及同时测定穗花杉双黄酮和selaginellin的HPLC含量测定等方法简便、准确、重现性好,可有效控制卷柏药材的质量。
Objective: To improve quality standards of Herba Selaginellae. Methods: According to the methods recorded in the appendix of Chinese Pharmacopeia(2010 edition), the microscopic identification ofHerba Selaginellae was conducted, and the tests of ash and acid-insoluble ash were carried out. The contents of bioactive constituents in selaginellin and amentoflavone were determined by HPLC on a Waters Cosmosil C18 column(250 mm× 4.6 mm id, 5 μm) and eluted with acetonitrile-0.1% formic acid as the mobile phase at a flow rate of 1 m L·min-1.The column temperature was 30 ℃ and the detection wavelength was 300 nm and 337 nm.Results: Microscopic characteristics were identified. The limit for acid insoluble ash was ≤ 11.0%, and the total ash limit was ≤ 15.0%. The HPLC method for simultaneous determination of amentoflavone andSelaginellin was established. Conclution: The developed method is accurate, sensitive and reproducible, which is effective for the quality control of Herba Selaginellae.