摘要
在硫酸介质中，微量铂（Ⅳ）的存在对溴酸钾氧化三氯偶氮胂的褪色反应有明显的催化作用，研究了催化分光光度法测定微量铂的新方法。该法灵敏度高，测定铂的线性范围为０．００～０．４０μｇ／１０ｍＬ。该方法已用于铂催化剂中微量铂的测定，结果令人满意。
A new catalytic spectrophotometric method for the determination of platinum was established based on the catalytic action of Pt(Ⅳ) on the oxidative fading between trichloro arsenazo and KBrO 3 in an acid medium .The method offers the advantages of simplicity,rapidity,and sensitivity.Beer's law is obeyed in the range of 0.00～0.40 μg/10mL.The method has been applied to the determination of platinum in platinum rhodium catalyst with satisfactory resutes.
出处
《分析试验室》
CAS
CSCD
1997年第1期56-58,共3页
Chinese Journal of Analysis Laboratory
基金
甘肃省自然科学基金
关键词
三氯偶氮胂
铂
溴酸钾
催化分光光度法
Trichloro arsenazo
catalytic spectrophotometry
platinum
potassium bromate.
