HEH[EHP]萃取色层分离-原子发射光谱测定超高纯氧化钬、氧化铒中痕量稀土杂质  

Determination of Rare Earth Impurities in Ultra highly Pure Er 2O 3 and Ho 2O 3 by Extraction Chromatography Atomic Emission Spectrometry

作　　者：李武帅[1] 彭春霖[1] 袁甫[1] 綦文娣[1] 高明 李丽梅 

机构地区：[1]中国科学院长春应用化学研究所

出　　处：《光谱学与光谱分析》1999年第1期57-60,共4页Spectroscopy and Spectral Analysis

摘　　要：本文研究了２－乙基己基膦酸单２－乙基己酯萃取色层分离－原子发射光谱测定超高纯Ｈｏ２Ｏ３、Ｅｒ２Ｏ３中良量稀土杂质，可用于９９．９９９９％Ｈｏ２Ｏ３、Ｅｒ２Ｏ３的纯度分析。This article applied (2 ethyhexyldrogen 2 ethylhexyl phosphonate)extraction chromatography to separate 14 rare earth impurities from ultra highly pure Er 2O 3 and Ho 2O 3,and then the impurities were determined by atomic emission spectrometry.The average percentage recovery for each element is in the range of 70%～140%.The relative standard deviations of the determination are ±3 3%～2 2%.This method can be applied to the determination of the trace amounts of rare eath impurities in Er 2O 3 and Ho 2O 3 with a purity of 99 999 9% 99 999 99%.

关 键 词：萃取色层 超高纯 氧化钬 氧化铒 稀土杂质 测定 

分 类 号：O614.33[理学—无机化学] TQ133.3[理学—化学]