阿胶补血胶囊是由黄芪、皂矾、阿胶等几味中药组成 ,用于治疗缺铁性贫血。皂矾的主要成分为硫酸亚铁 ,通过测定硫酸亚铁的含量以保证该药品的临床疗效。经查阅文献和大量实验 ,选用紫外分光光度法进行测定。结果表明 ,此方法可靠且简便易行。1 仪器与试药　 75 1型紫外分光光度 Ejiao Buxue capsule is composed of a few herbs, such as astragalus, saponin and donkey-hide gelatin, used for the treatment of iron deficiency anemia. The main component of saponin is ferrous sulfate. The content of ferrous sulfate is determined to ensure the clinical efficacy of the drug. After consulting the literature and a large number of experiments, UV spectrophotometry was used for the determination. The results show that this method is reliable and easy to implement. 1 Instruments and reagents 75 Type 1 UV spectrophotometry