摘要
本文利用Ｆｅ３＋对Ｈ２Ｏ２氧化二苯胺碘酸钠的反应具有催化作用，且在一定条件下显色反应的速度与催化剂Ｆｅ３＋的含量成正比的原理，建立了一种痕量铁的分析方法。本方法的线性范围为０．００８～０．０６４ｍｇ／Ｌ，相对标准偏差小于５．０％，标准加入回收率为１０１％～１０３％，检出限为０．００６７３ｍｇ／Ｌ。
bstrac A catalytic kinetic spectrophotometric method is described for the determination of iron in medicine and drinking water,based on its catalytic effect on the oxidation of sodium diphenylamine iodate by H 2O 2.The linear range of determination is 0.008～0 064μg/mL.The relative standard deviation is less than 5.0% ,and the recovery is from 101% to 103%.The detection limit is 0.00673μg/mL
出处
《分析试验室》
CAS
CSCD
1998年第5期34-36,共3页
Chinese Journal of Analysis Laboratory
关键词
催化动力学
光度法
药物
铁
饮用水
分析
Catalytic kinetic spectrophotometry
iron
medicine
drinking water
