Methods:Herba Epimedii, Fructus Psoraleae and Bombyx mori were identified by TLC and chemistry reactions; and icariin was determined by UV.

• 方法:采用薄层色谱法和理化反应对其中的淫羊藿、补骨脂、原蚕蛾进行鉴别,采用紫外分光光度法测定淫羊藿苷含量。