ICP—MS同时测定聚合氯化铝中的Al_2O_3及5种元素含量的研究

The determination of Al_2O_3 and 5 elements in poly aluminium chloride by inductively coupled plasma mass spectrometer method

研究结果表明:用ICP—MS可以同时测定聚合氯化铝中的Al2O3及As、Mn、Hg、Pb、Cd5种元素的含量。测试样品(100倍稀释固体聚合氯化铝)中Al2O3、As、Mn、Hg、Pb、Cd的测定结果分别为:030%、187μg/L、954μg/L、460ng/L、233μg/L、574ng/L;测定的准确度分别为930%、109%、944%、883%、980%、886%。ICP—MS法具有10-12～10-6级多元素同时分析、测定快速、样品前处理简单、干扰少、省事、省力等无可比拟的优点。

A method for the determination of Al 2O 3 and 5 elements Al、As、Mn、Hg、Pb、Cd in poly aluminium chloride by inductively coupled plasma mass spectrometer (ICP—MS) has been established. They found Al 2O 3 and these 5 elements in poly aluminium chloride could be simultaneously determined by ICP—MS. The contents of Al 2O 3 and As、Mn、Hg、Pb、Cd in test sample (100 times dilution) are 0.30%,1.87 μg/L, 95.4 μg/L,46.0 ng/L, 23.3 μg/L,574 ng/L respectively, and the accuracies of this test are 93.0%,109%,94.4%,88.3%,98.0%,88.6% respectively.