Abstract：The polymetallic ore samples were treated by alkali fusion-ion exchange and the rare earth elements in the samples were determined by inductively coupled plasma mass spectrometry (ICP-MS). The instrument operating parameters were optimized, and the factors affecting the analytical results including ion exchange speed and eluant were discussed. Experiment results indicated that the matrix interferences and mass interferences could be eliminated by ion exchange speration and selecting appropriate analytical isotopes, and analytical signal drift could be inhibited with Rh, Re as internal standard elements. The method has been used for the determination of rare earth elements in polymetallic ore certified reference materials which mainly contained zinc ore and copper ore respectively (GBW07237,GBW07233). The results were in good agreement with the certified values. Detection limits of the method were in the range of 0.001-0.009 μg/g with relative standard deviations of 1.3%-7.8% and recoveries of 91%-109%.
杨小丽;崔森;杨梅;李小丹. 碱熔离子交换—电感耦合等离子体质谱法测定多金属矿中痕量稀土元素[J]. 冶金分析, 2011, 31(3): 11-16.
YANG Xiao-li;CUI Sen;YANG Mei;et al.. Determination of rare earth elements in polymetallic ore by inductively coupled plasma mass spectrometry after alkali fusion and ion exchange. , 2011, 31(3): 11-16.
