分析测试学报2001，Vol.20Issue(2)：63-65,3.
测定尿中痕量碘的高锰酸钾-亚砷酸体系催化光度法
Catalytic Spectrophotometric Determination of Trace Iodide in Urine with Potassium Permanganate－ Arsenious Acid System
摘要
Abstract
The oxidation of arsenious acid by Mn(Ⅲ ) which is produced from the reaction of potassium permanganate and arsenious acid can be catalyzed by iodide in the medium of sulphuric acid and phosphoric acid.Based on the catalytic role of iodide,a catalytic spectrophotometric method for the determination of trace iodide has been established with a detection limit of 0.4 μ g/L,linear range of 1.0～ 25.0 g/L,RSD of 2.5％ ～ 3.7％ (n=6),and recovery rate of 96.4％ ～ 102.6％ .The method has been satisfactorily used for the determination of iodide in urine samples.关键词
碘/催化光度法/尿分类
医药卫生引用本文复制引用
廖力夫,匡汀,邓健..测定尿中痕量碘的高锰酸钾-亚砷酸体系催化光度法[J].分析测试学报,2001,20(2):63-65,3.
