采用高效液相色谱法测定乳疾灵颗粒中淫羊藿甙的含量,直接用水提取供试品,以磷酸溶液(0.075mol·L~(-1),用三乙胺调pH为4.5):已腈(70:30)为流动相。在C_(18)柱上分离,检测波长为270nm,外标法定量,方法简便,其他组分对测定无干扰,重现性好,可用于本品的质量控制,平均回收率为98.6％,RSD=0.88％,样品中淫羊藿甙的平均含量为0.10mg·g~1 The content of epimedium in milk granules was determined by high performance liquid chromatography. The test sample was directly extracted with water and phosphoric acid solution (0.075 mol·L -1 , the pH was adjusted to 4.5 with triethylamine): Nitrile (70:30) is the mobile phase. Separation on C 18 column, detection wavelength of 270 nm, external standard method, simple method, other components have no interference to the measurement, good reproducibility, can be used for quality control of the product, the average recovery rate of 98.6%, RSD = 0.88%, the average content of Epimedium in the sample is 0.10 mg·g~1