溴酸钾氧化偶氮胂动力学光度法测定钯  

Kinetic spectrophotometric determination of trace palladium based on its catalysis for discoloring reaction of arsenazoⅢ with potassium bromate

作　　者：周之荣[1] 彭道锋[1] 

机构地区：[1]华东地质学院应用化学系,抚州344000

出　　处：《分析试验室》2001年第4期9-11,共3页Chinese Journal of Analysis Laboratory

摘　　要：根据在稀 H2 SO4 介质中 ,痕量钯 ( )对溴酸钾氧化偶氮胂 褪色反应的显著的催化作用 ,建立了测定痕量钯的催化动力学光度法。方法检出限为 0 .1 3μg/L,测定范围为 0～ 8.0 μg/L。可用于矿石中痕量钯的测定。Based on the catalytic effect of trace palladium(Ⅱ) on discoloring reaction of arsenasoⅢ with potassium bromate in dilute sulphuric acid solution, a method for determination of trace Pd(Ⅱ) by kinetic spectrophotometry was developed. The detecion limit is 0.13μg/L and the linear range of determination is 0～8.0 μg/L for Pd(Ⅱ). The method was applied to the determination of trace Pd(Ⅱ) in ores.

关 键 词：动力学光度法 偶氮胂Ⅲ 溴酸钾 钯 矿石 痕量分析 

分 类 号：O614.823[理学—无机化学] P575.4[理学—化学]