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Five trace impurities as Ce, Pr, Sm, Gd, and Dy are separated from europium oxide with P507 extraction resin by extraction chromatography. When determined simultaneously by ICP-AES, the impurities show their recovery ratios between 88% and 105%. A lower than 10% relative standard deviation of these elements is obtained when their contents in europium oxide are 5 μg/g. The satisfactory results indicate this simple method is sensitive and accurate. It has been employed in the analysis of these five rare earth elements in 99.99% europium oxide.