电感耦合等离子体质谱法同时测定化探样品中12种元素

来源期刊：黄金2010年第10期

论文作者：陈雪 刘烊 陈占生

文章页码：60 - 62

关键词：电感耦合等离子体质谱法； 分析测定； 化探样品

Key words：ICP-MS； analysis and determination； geochemical exploration samples

摘    要：研究了采用电感耦合等离子质谱仪(ICP-MS)同时测定地质样品中V、Cr、Co、Ni、Cu、Zn、Mo、Ag、Cd、W、Pb、Bi等多种元素的方法。试样用王水、高氯酸、氢氟酸溶解,硝酸定容,以103Rh为内标,采用在线加入方式,ICP-MS测定。实验表明,该方法精密度好,测定结果的相对标准偏差一般在0.02%～2.76%之间,大部分元素RSD<1%;准确度好,标准样品测定结果与推荐值有较好的符合性;检出限为0.1ng/mL。该方法操作简单、快速、准确,可应用于批量化探样品多种元素的测定。

Abstract: The paper researches the methods to determine multi-elements in geologic samples simultaneously by ICP-MS,such as V,Cr,Co,Ni,Cu,Zn,Mo,Ag,Cd,W,Pb,Bi and so on. Samples liquated by aqua fortis,perchloric acid and hydrofluoric acid,constant volume by nitric acid,with Rh as internal standard,are tested by ICP-MS in the method of adding online. Experiments show that the relative standard deviation is between 0.02 % and 2.76 % and most of elements RSD is less than 1 % ; the method has fine accuracy,and the result has better accordance with certificate value; the detection limit is 0.1 ng/mL. The method is of good stability,easy operation,high-speed and accuracy,which could be applied to determine multi-elements in batch geochemical exploration samples.