电感耦合等离子体质谱法测定纳米铜粉中6种微量元素  

ICP-MS Determination of 6 Trace Elements in Copper Nanoparticles

作　　者：唐碧玉[1] 施意华[1] 秦海青[1,2,3] 邱丽 古行乾[1] TANG Biyu;SHI Yihua;QIN Haiqing;QIU Li;GU Xingqian(China Nonferrous Metal （Guilin） Geologyand Mining Co. , Ltd. ,Guilin 541004, China;Guangxi Key Laboratory of Superhard Material, Guilin 541004, China;National Engineering Research Center for Special Mineral Material, Guilin 541004, China)

机构地区：[1]中国有色桂林矿产地质研究院,桂林541004 [2]广西超硬材料重点实验室,桂林541004 [3]国家特种矿物材料工程技术研究中心,桂林541004

出　　处：《理化检验（化学分册）》2018年第5期525-528,共4页Physical Testing and Chemical Analysis(Part B:Chemical Analysis)

基　　金：桂林市"1020"创新驱动计划资助项目(20160204);桂林市科技计划资助项目(2016010706);中国有色矿业集团科技计划资助项目(2016KJJH03)

摘　　要：纳米铜粉样品(0.5000g)用8mol·L^(-1)硝酸溶液20mL溶解,用水定容至100mL,从上述溶液中分取10.0mL用0.3mol·L^(-1)硝酸溶液定容至50 mL。采用电感耦合等离子体质谱法测定样品溶液中钴、银、锑、锡、钡、铅等6种微量元素。以115In和205 Tl作为内标对测定的基体效应进行了校正,采用测定元素同位素以消除和减少质谱干扰。6种元素的检出限(3s)为0.002~0.074μg·L^(-1)。加标回收率为94.0%~103%,测定值的相对标准偏差(n=11)均小于5.0%。The copper nanoparticle sample（0.500 0 g）was decomposed with 20 mL of 8 mol·L-1 nitric acid solution,and the solution was diluted to 100 mL with water.An aliquot（10.0 mL）of the above solution was taken and diluted to 50 mL with 0.3 mol·L-1 nitric acid solution.ICP-MS was applied to the determination of 6 trace elements,i.e.,Co,Ag,Sb,Sn,Ba and Pb in the sample solution.115 In and 205 Tl were used as internal standard for the correction of the matrix effect.The suitable isotopes were used for eliminating and reducing the influence of mass spectrometry interference.Detection limits（3 s）of the 6 elements were ranged from 0.002 to 0.074μg·L-1.Values of recovery found by standard addition method were in the range of 94.0%-103%,and values of RSD′s（n=11）were less than 5.0%.

关 键 词：电感耦合等离子体质谱法 纳米铜粉 微量元素 

分 类 号：O657.63[理学—分析化学]