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

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.