【摘要】 本文介绍了高纯氧化镧中微量稀土杂质的化学光谱测定，将Ｌａ２Ｏ３通过Ｐ５０７萃淋树脂分离富集，将大量基体分离掉，剩下微量的稀土杂质，用Ｃ粉吸附后加ＫＢＨ４做载体进行光谱测定。本方法可测定９９．９９９９％纯度的Ｌａ２Ｏ３中的微量稀土杂质。更多还原

【Abstract】 The determination of trace rare earth impurities in the highpurity Lanthanum oxide by chemical spectrographic analysis is reported in this paped.The matrix,La2O3,was separated by the extractioneluating resin P507.The remained rare earth impurities were absorpted by carbon powder.The rare earth impurities absorpted were determinated in carrier KBH4 by spectrographic analysis.The trace rare earth impurities in 999999% La2O3 can be determinated by this method.更多还原