一、前言磁性材料中铁的测定,多年来一直采用在酸性条件下铝片或氯化亚锡还原后,用重铬酸钾滴定进行测定。虽然方法准确度高,但需用氯化高汞及大量的高价铬等有毒化合物。材料中有铜与铁一起存在时,此法测 I. Introduction Determination of iron in magnetic materials, over the years has been used in acidic conditions after the reduction of aluminum flake or stannous chloride, potassium dichromate titration was measured. Although the method is highly accurate, toxic compounds such as high-chloride chlorides and high-value chromium are required. When there is copper and iron in the material, this method is used