摘要
采用ICP-MS法对稀散元素矿石标准物质中Ga,In,Ge,Tl,Co,Ni,Mo,Th,U,W这10种元素进行测定,各元素的检出限分别为0.001 0,0.000 5,0.003 0,0.000 5,0.001 0,0.005 0,0.030 0,0.000 3,0.000 3,0.001 0μg/L,相对标准偏差RSD均小于5.00%,加标回收率为96.4%103.3%。该方法操作简便、检出限低、灵敏度高、线性范围宽、准确度好,能够满足稀散元素矿石标准物质定值的要求。
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单位国土资源部