PM2.5中铂族元素及微量元素采样滤膜的选择  

Selection of sampling filter for measuring platinum group and trace elements in PM2.5

作　　者：郑灿利 李小成 张梦君[1] 董娴[1,2] 陈卓 ZHENG Canli;LI Xiaocheng;ZHANG Mengjun;DONG Xian;CHEN Zhuo(College of Chemistry and Material Science,Guizhou Normal University,Guiyang Guizhou 550001;Key Laboratory of Atmospheric Fine Particles and Air Pollution Chemistry of Guiyang City,Guiyang Guizhou 550001)

机构地区：[1]贵州师范大学化学与材料科学学院,贵州贵阳550001 [2]贵阳市大气细粒子和大气污染化学重点实验室,贵州贵阳550001

出　　处：《环境污染与防治》2020年第7期869-873,共5页Environmental Pollution & Control

基　　金：国家自然科学基金资助项目(No.21767007);贵州省科技计划基金资助项目(黔科合基础〔2018〕1111);贵州省研究生教育创新计划项目(黔科合YJSCXJH〔2018〕032);贵州师范大学2017年度学术新苗培养及创新探索专项项目(黔科合平台人才〔2017〕5726);江苏省机动车尾气污染控制重点实验室开放项目(No.2019-OVEC54)。

摘　　要：为准确分析大气PM2.5中的铂族元素及微量元素,得到更低的检出限,对3种石英滤膜(Whatman石英滤膜(WH)、Pall石英滤膜(PA)、国产石英滤膜(CC))的空白值进行检测,并用王水处理WH,以检验其空白值的降低效果。结果表明:PA中铂族元素及微量元素含量最低。王水处理WH(WH’)中铂族及微量元素的空白值得到有效降低。WH’和PA可用于PM2.5中铂族元素及微量元素的采集和分析。To obtain low detection limits of platinum group and trace elements in PM2.5,blank values of three quartz filters(Whatman brand quartz filter(WH),Pall brand quartz filter(PA),and domestic quartz filter(CC))were detected.WH was treated by aqua regia to test the effect of reducing blank value.The results showed that the blank values of platinum group and trace elements in PA were the lowest.The blank values of the platinum group and trace elements in WH’(WH treated by aqua regia)were effectively reduced.WH’and PA could be used for the collection and analysis of platinum group and trace elements in PM2.5.

关 键 词：PM2.5 铂族元素 微量元素 石英滤膜 电感耦合等离子体质谱 

分 类 号：X513[环境科学与工程—环境工程]