摘要
在硫酸介质中，钯对溴酸钾氧化间硝基偶氮氯膦（ＣＰＡｍＮ）褪色反应有强烈的催化作用。采用二次通用旋转组合设计方法对实验条件进行了优化。利用优化的结果，建立了催化分光光度法测定钯的新方法，测定了钯碳样品中钯的含量。本法检出限为０．３９８ｍｇ／Ｌ，检测范围０～３×１０－６ｇ／ｍＬ。
A new catalytic kinetic
system for the determination of trace palladium has been developed with spectrophotometry
based on Pd(Ⅱ) catalyzing oxidation of CPA m N by potassium bromate in H 2SO 4
medium.In this experiment,the general revolving combination design has been used to
optimize the experimental parameters.The determination limit is 0.398mg/L,the linear range of
Pd(Ⅱ) is 0～3mg/L.The method is of high sensitivity,selectivity,accuracy and simplicity.The
method has been applied to the determination of trace Pd(Ⅱ) in palladium carbon with
satisfactory results.
出处
《分析试验室》
CAS
CSCD
1999年第2期35-38,共4页
Chinese Journal of Analysis Laboratory
关键词
旋转组合设计
催化光度法
钯
测定
General revolving combination design
catalytic
spectrophotometry
palladium
