电感耦合等离子体-质谱法测定高纯ZnS粉末中痕量金属杂质  

Direct determination of metal impurities in high purity zinc sulphide by inductively coupled plasma mass spectrometry

作　　者：墨淑敏[1] 潘元海[1] 王长华[1] 

机构地区：[1]北京有色金属研究总院,北京100088

出　　处：《分析试验室》2010年第5期73-75,共3页Chinese Journal of Analysis Laboratory

摘　　要：建立了用电感耦合等离子体-质谱(ICP-MS)法测定高纯ZnS粉末中Mg、Al、Mn、Ni等11种痕量金属杂质含量的方法。样品溶解后可直接进样分析。加标回收率为89%~120%。各金属杂质均为10 ng/mL的混合标准溶液平行7次进样的相对标准偏差均小于5%。方法能够满足纯度在99.99%~99.999%范围的ZnS样品中杂质测定的需要。Eleven trace metal impurites in high purity zinc sulphide powder such as magnesium,aluminium,manganese,nickel were directly determined by inductively coupled plasma mass spectrometry in this paper.Sample was prepared by diluted hydrochloric acid before instrumental analysis.Good spiked recoveries from 91% to 106% were obtained.The relative standard deviations(RSDs) calculated from seven consecutive injections of 10 ng/mL standard mixtures were less than 5%.

关 键 词：电感耦合等离子体质谱 ZNS 杂质 

分 类 号：TG115.3[金属学及工艺—物理冶金]