三氯化铑中铑含量测定

Rhodium determination method of rhodium(Ⅲ) chloride hydrate

采用焙烧及氢气还原法对三氯化铑中铑含量进行测定。确定了三氯化铑焙烧过程和氢气还原过程中的最佳条件,并与重量法对同一样品的分析结果作比较。结果表明,本测定法具有准确度高、精密度高、操作方便等优点。测定38.82%铑含量,加标回收率为99.70%~100.52%,相对标准偏差0.61%。

Determining rhodium of rhodium（III） chloride hydrate by calcine and hydrogen reduction. Obtain optimalcondition of calcine and hydrogen reduction process, comparing analysis result to gravimetric method. Result Indicating,this method showed exact、accurate feature and operated simply. Determining rhodium of 38.82%,recoveries obtained by standard addition method were in the range from 99.70% to 100.52% and RSD calculatd from the results of determination was 0.62%.