摘要
在 0 30mol/LH2 SO4介质中及沸水加热条件下 ,痕量铂 对溴酸钾氧化偶氮胂Ⅲ的缓慢褪色反应具有显著的催化作用 ,流水冷却可中止反应。据此 ,建立了一个测定 1～ 50ng/mL铂的催化光度分析新方法 ,用于催化剂样品中铂的测定 。
A catalytic spectrophotomertic method for the determination of 1～50ngPt/mL has been established. It is based on the decolorizing reaction of arsenazo Ⅲ with KBrO 3 by the catalytic effect of platinum(Ⅳ) in the medium of 0.3mol/L H 2SO 4, heating by boiling water. The reaction can be quenched with tap water. Platinum in catalyst samples was determined by proposed method with satisfactory results.
出处
《冶金分析》
CAS
CSCD
北大核心
2000年第2期10-12,共3页
Metallurgical Analysis
