电感耦合等离子体质谱法测定高纯金中铝、砷、铋、铬、铁、铅、锑、硒、碲、铱痕量元素  

Determination of Trace Elements in High Purity Gold by Inductively Coupled Plasma Mass Spectrometry

作　　者：黄杏娇 张学友 曹小勇 杨桂群[1,2] 吴珍珍 黄靖宇[1,2] HUANG Xingjiao;ZHANG Xueyou;CAO Xiaoyong;YANG Guiqun;WU Zhenzhen;HUANG Jingyu(Shenzhen Ningshen Testing and Inspection Technology Co.,Ltd.,Shenzhen,Guangdong 518020,China;Nanjing Institute of Product Quality Inspection,National Center of Supervision and Inspectionon Quality of Gold and Silver Product(Nanjing),Nanjing,Jiangsu 210028,China)

机构地区：[1]深圳市宁深检验检测技术有限公司,广东深圳518020 [2]南京市产品质量监督检验院国家金银制品质量监督检验中心(南京),南京210028

出　　处：《中国无机分析化学》2021年第1期76-80,共5页Chinese Journal of Inorganic Analytical Chemistry

摘　　要：建立了微波消解-内标法-标准加入-ICP-MS法测定高纯黄金中铝、砷、铋、铬、铁、铅、锑、硒、碲、铱等痕量元素的分析方法。从试样溶解方式、内标元素及同位素的选择、仪器检测模式的优化及降低基体抑制效应等方面进行优化。实验加标回收率为99.5%~110%,相对标准偏差(RSD)为0.050%~6.5%。实验的准确度和精密度良好,操作便捷。A method for the determination of trace elements Al,Cr,Fe,Se,As,Sn,Sb,Te,Bi,Pb and Ir in high purity gold by microwave digestion-standard addition-internal standard by using the inductively coupled plasma mass spectrometry was developed.The study is optimized from the sample dissolution,the selection of internal standard elements and isotopes,instrument operating condition and detection mode,the reduction matrix inhibition effect.The method relative standard deviation of element determination is 0.050%—6.5%,and the recovery of standard substances is 99.5%—110%.The method is convenient and accurate and reliable.

关 键 词：微波消解 内标法-标准加入 ICP-MS法 高纯金 痕量元素 

分 类 号：O657.63[理学—分析化学] TH843[理学—化学]