电感耦合等离子体原子发射光谱(ICP-AES)法测定Al_2O_3基催化剂中的铂  

Determination of Platinum in Alumina-based Catalysts by Inductively Coupled Plasma-Atomic Emission Spectrometry

作　　者：冯振华[1,2] 王皓莹[1,2] 王可伟 

机构地区：[1]北京矿冶研究总院,北京102628 [2]金属矿产资源评价与分析检测北京市重点实验室,北京102628 [3]北京雅迪力特航空新材料股份公司,北京101500

出　　处：《中国无机分析化学》2016年第2期43-47,共5页Chinese Journal of Inorganic Analytical Chemistry

基　　金：北京市科技创新基地培育与发展专项(Z151100001615044)资助

摘　　要：采用火试金预富集Al2O3基催化剂中的铂,硝酸-盐酸溶解贵金属,并利用电感耦合等离子体原子发射光谱（ICP-AES）法测定Al2O3基催化剂中的铂。实验研究了配料方案、灰吹条件,并讨论了测定过程中存在的元素干扰,用于测定实际样品中铂,其加标回收率在97.7%-102%,相对标准偏差0.97%-2.7%。方法操作简单,准确实用,适用于实际样品分析。An inductively coupled plasma-atomic emission spectrometry （ICP-AES） method was used for the determination of platinum in alumina-based catalysts. The samples were preconcentrated by fire assay and dissolved in nitric acid-hydrochloric acid medium. Proportion scheme of fire assay method and cupellation condition were studied. The coexisting element interference during determination was discussed. Under the optimized experimental conditions, the recovery was in the range of 97.7%-102%. The relative standard deviation （RSD） was less than 3%. The results showed that this method can meet the requirements of routine analysis of platinum in alumina-based catalysts.

关 键 词：Al2O3基催化剂 铂 电感耦合等离子体原子发射光谱法 

分 类 号：O657.31[理学—分析化学] TH744.11[理学—化学]