ICP—MS法测定钢铁及合金中的砷锡锑铅铋

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本文研究了应用ICP-MS法测定钢铁中微量杂质元素(As,Sn,Sb,Pb,Bi)的实验方法,考察了内标元素,试样溶解介质,酸度,分离,富集条件,样品基体等因素对测定结果的影响,用数学公式校正HCl对测定As的干扰。实验结果表明,用硝权或王水溶解样品,In为内标元素,数学校正消除谱线及非谱线干扰,按此方法测定标准钢样中上述微量杂质元素所得结果与推荐值吻合RSD小于8%,可直接进行钢铁样品中“五害”
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