贵金属铂、钯、铑含量检测及判定规范

Specification for the Detection and Determination of Platinum, Palladium and Rhodium Content of Precious Metals

摩托车催化转化器是减少废气污染的主要部件和重要内容,对摩托车排放尾气所包含的包含一氧化碳、氮氧化物、碳氢化合物等物质可以实现有效的转化,净化为无公害的二氧化碳、水和氮气。摩托车转化器主要成分是铂、钯、铑,其含量成为了催化转化器催化效果的重要指标,对于废气转化起到了至关重要的作用。文章主要对铂族元素的化学性质作为主要的出发点,对铂、钯、铑元素的氧化还原特点进行分析,对于铂钯铑贵金属在每个试验当中所呈现出的化学变化做出了探究,最终实现了其理论指导。

The motorcycle catalytic converter is the main part and important part of reducing waste gas pollution.Palladium and rhodium,which plays an important role in the motorcycle exhaust,which includes carbon monoxide,nitrogen oxide,hydrocarbons,purified into pollution-free carbon dioxide,water and nitrogen,becoming the important index of catalytic effect and accurately determining the content of the catalytic converter.In this paper,the chemical properties of platinum elements are taken as the main starting point,This paper analyzes the redox characteristics of platinum,palladium and rhodium,explores the chemical changes of platinum,palladium and rhodium precious metals in each test,and finally realizes its theoretical guidance.