ICP-AES法测定碘化铑中的铑含量  

Determination of Rhodium in Rhodium Iodide by ICP-AES

作　　者：杨晓滔 王应进 马媛 杨梅英 李青 方卫 

机构地区：[1]贵研铂业股份有限公司稀贵金属综合利用新技术国家重点实验室,昆明650106

出　　处：《贵金属》2015年第4期73-75,共3页Precious Metals

基　　金：云南省应用基础研究计划重点项目(2012FA006)

摘　　要：采用HNO3-HClO4消解样品除碘,王水溶解铑,以钇为内标,ICP-AES准确测定碘化铑中的铑含量。考察了样品消解处理和测定的最佳条件,并与硝酸六氨合钴重量法进行了比较,两者测定结果基本相符。方法精密度（RSD）〈1%（n=11）,加标回收率99.00%~101.14%。方法快速、简便。An accurate quantitative analysis method of rhodium in rhodium iodide with inductively coupled plasma-atomic emission spectrometry（ICP-AES） was established. The sample, after the oxidation removal of iodine with HNO3-HClO_4 and dissolving by aqua regia, was determined by ICP-AES using yttrium as an internal standard. The relative standard deviations（RSD） of the method was 1%（n=11） and the recovery was between 99.00%~101.14%. The method is accurate, rapid and simple compared with the classic hexaammine cobalt nitrate gravimetriy.

关 键 词：分析化学 碘化铑 ICP-AES 内标法 铑含量 

分 类 号：O657.31[理学—分析化学] O614.822[理学—化学]