有机含铁药物临床用于治疗缺铁性贫血,常用的有葡萄糖酸亚铁,富马酸亚铁、枸橼酸铁铵。测定亚铁药物含量一般采用指示剂铈量法,含高铁的药物采用碘量法。指示剂铈量法终点附近溶液颜色不稳定,致使终点不易观察。本文介绍双电位滴定 The clinical use of organic iron drugs in the treatment of iron deficiency anemia, commonly used are ferrous gluconate, ferrous fumarate, iron ammonium citrate. The determination of ferrous drug content is generally used indicator of cerium method, with high-iron drugs using iodometric method. Indicator solution of cerium end solution near the color instability, resulting in the end is not easy to observe. This article describes bipotentiometry