Fe^(3+)-SCN^--CV高灵敏显色反应

A Study on Highly Sensitive Color Reaction of Fe^(3+)-SCN^--CV

研究铁的离心光度法测定 ,表观摩尔吸光系数 ε612 =3.0 8× 10 6L· ( mol· cm) -1,Fe3+含量在 0 .4～ 6.0 mg· L-1范围内呈线性关系 .应用于某些纯化学试剂中微量铁的分析 ,分析结果与标准值吻合 .

A study is made on the determination of iron by centrifugation photometry. The results revealed an apparent mole absorptivity ε 612 = 3.08×10 6 L·( mol·cm ) -1 , and a linearity of Fe 3+ content 0.4～6.0 mg·L -1 . The method had been applied to the analysis of trace iron in pure chemical reagent. Analytical results tally with normalized value.