金属催化器中贵金属测定方法研究及应用
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- 英文论文题名：Research and Application of the Determination of Precious Metals in the Metal Catalytic Converter
- 论文作者：刘悦 ; 李军 ; 方茂东
- 英文论文作者：Liu Yue~1 Li Jun~1 Fang Mao dong~2 1.Tianjin SwARC Automotive Research Laboratory Co. ; Ltd ; Tianjin ; 300163 2.China Automotive Technology & Research Center ; Tianjin ; 300300
- 年：2013
- 作者机构：天津索克汽车试验有限公司;中国汽车技术研究中心;
- 论文关键词：金属载体 ; 催化转化器 ; 贵金属含量 ; 贵金属分离富集 ; 电感耦合等离子体质谱法
- 英文论文关键词：Metal substrate ; Catalytic converter ; Precious metal loading ; Precious metal enrichment and separation ; Inductively coupled plasma mass spectrometry
- 会议召开时间：2013-11-26
- 会议录名称：2013中国汽车工程学会年会论文集
- 英文会议录名称：Proceedings of 2013 SAE-China Congress
- 语种：中文
- 分类号：U464.134.4
- 学会代码：QCGC
- 会议名称：2013中国汽车工程学会年会
- 会议地点：中国北京
- 主办单位：中国汽车工程学会
- 学会名称：中国汽车工程学会
- 页数：4
- 文件大小：145k
- 原文格式：O
- 会议级别：全国
摘要
针对车用金属催化转化器样品,建立了用6 mol/L盐酸溶液浸泡样品,得到的滤液与下溶物分别进行碲共沉淀制备成分析试液后,用ICP-MS法测定贵金属Pt、Pd、Rh分量的方法。经过8家实验室对本方法的共同验证:对于Pt、Pd、Rh三种元素,实验室间相对标准偏差依次为5%、4%、3%,各试验室的样品测定结果与参考值的相对偏差均<10%。结果表明,该方法检出限低,回收率高,再现性好,方法精密度令人满意。
For automotive metallic catalytic converter samples,a detemination method of precious metal Pt,Pd,Rh using ICP-MS was invested.After soaked by the 6mol/L HCl solution,the sample turned into filtrate and insoluble seperately,and then they were preparated into the test solutions respectively after the tellurium coprecipitation.The method has been co-verified by eight domestic and foreign laboratories,and the results are:for Pt,Pd and Rh,the interlaboratory relative standard deviations are 5%,4%,3% respectively,and the relative deviations between the determination results and the corresponding reference values are all less than 10%. The results show that the method has low detection limits,high recoveries,good recovories and satisfactory precisions.
For automotive metallic catalytic converter samples,a detemination method of precious metal Pt,Pd,Rh using ICP-MS was invested.After soaked by the 6mol/L HCl solution,the sample turned into filtrate and insoluble seperately,and then they were preparated into the test solutions respectively after the tellurium coprecipitation.The method has been co-verified by eight domestic and foreign laboratories,and the results are:for Pt,Pd and Rh,the interlaboratory relative standard deviations are 5%,4%,3% respectively,and the relative deviations between the determination results and the corresponding reference values are all less than 10%. The results show that the method has low detection limits,high recoveries,good recovories and satisfactory precisions.
引文
[1]Ronald M.Heck,Robert J.Farrauto,Suresh T.Gulati. Catalytic Air Pollution Control Commercial Technology [M].John Wiley & Sons,Inc.
[2]环境保护部.HJ 509-2009车用陶瓷催化转化器中铂、钯、铑的测定电感耦合等离子体发射光谱法和电感耦合等离子体质谱法[S].
[2]环境保护部.HJ 509-2009车用陶瓷催化转化器中铂、钯、铑的测定电感耦合等离子体发射光谱法和电感耦合等离子体质谱法[S].