电感耦合等离子体质谱法同时检测工作场所空气中的14种金属及其化合物

Simultaneous determination of 14 elements and their compounds in workplace air with inductive coupled plasma mass spectrum

目的：建立工作场所空气中铍（Be）、钒（V）、铬（Cr）、锰（Mn）、钴（Co）、镍（Ni）、铜（Cu）、锌（Zn）、钼（Mo）、镉（Cd）、锑（Sb）、钡（Ba）、铊（Tl）和铅（Pb）14种金属及其化合物同时测定的方法。方法：以微孔滤膜采集工作场所空气中的金属及其化合物,20 ml 2 mol/L的HNO3溶液作为消解液,电热板上加热消解样品,电感耦合等离子体质谱（ICP-MS）进行分析。结果：整个方法的检出限可以满足测定的要求,精密度0.93%～5.54%,回收率在91.51%～101.9%之间,测定标准参考物质的分析结果令人满意。结论：该方法简便、快速、准确并且灵敏度高,可用于工作场所空气中多种金属及其化合物的同时检测。

Objective：To develop a method for simultaneous determination of 14 elements and their compounds in workplace air with ICP-MS.Methods：The metals and their compounds collected by micro porous filter membrane were digested on the heated board with 20 ml 2 mol/L HNO3 solution and determined by ICP-MS.Results：The detection limit was good,the RSD 0.93%～5.54%,recoveries 91.51%～101.9%.The results of analyzing standard material were satisfactory.Conclusion：This method is simple,sensitive,accurate and suitable to determine 14 metals and their compounds in the workplace air simultaneously and rapidly.