采用电感耦合等离子体质谱(ICP-MS)法,对盐中痕量铅、镉、砷、铬进行了分析.对影响测定的各种因素进行了较详细的研究,确定了测定最佳条件.结果表明,方法检出限为:Pb 0.003μg/L,Cd 0.005 μg/L,As 0.003 μg/L,Cr 0.008 μg/L,回收率为:90.8%~109.5%,RSD小于3.68%.该法准确、快速、简便,应用于盐中痕量铅、镉、砷、铬的测定,结果满意.
参考文献
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[2] | R. Juvonen;T. Lakomaa;L. Soikkeli .Determination of gold and the platinum group elements in geological samples by ICP-MS after nickel sulphide fire assay: difficulties encountered with different types of geological samples[J].Talanta: The International Journal of Pure and Applied Analytical Chemistry,2002(3):595-603. |
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[4] | USA EPA method 2008 Determination of trace elements in waters and water by inductively coupled plasma-mass spectrometry[S].,1994. |
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