ICP-MS法同时测定钢渣中10种矿质元素

Analysis of 10 mineral elements in slag by ICP-MS

建立了钢渣中多种矿质元素的检测方法。钢渣样品经HNO3-HF-HClO4消化,采用电感耦合等离子体质谱(ICP-MS)法检测钢渣中10种矿质元素。该方法的检出限为0.002～6.68μg.g-1,加标回收率为78.8%～105.7%,相对标准偏差(RSD)为0.68%～8.29%。该方法具有简便、快速、准确等特点,可用于钢渣中矿质元素的分析。

Inductive coupled plasma mass spectrometry （ICP-MS） was used to analyze the contents of 10 mineral elements in slag. After digested completely by HNO3-HF-HC104, these samples were determined using the internal method. The recoveries for spiking samples were 78.8%--105.7%, and the relative standard deviations were 0.68%--8.29%. The range of the detection limits of elements was 0.002--6.68 μg.g^-1. The proposed method is simple, rapid and accurate, and could be used to analyze mineral elements in the slag.