Li Peizhong, Chen Limin, Li Jie (Inner Mongolia Baogang Rare Earth High Science and Technology Co. Ltd. , Baotou 014010, China)
<正> Determination of the rare earth impurity in pure cerium oxide is done by ICP-MS. The interference and other factors which affect analytical results were discussed. The accuracy are between 0.81% -11.98% and the recoveries of standard addition are 96% - 112.5% . This method can meet the demand for product inspection.
cerium oxide; inductively coupled plasma mass spectrometry; pure cerium oxide product; rare earths
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