高纯稀土氧化物中微量稀土杂质光谱测定,国内外报导较少。本文对缓冲剂、基体等方面进行了初步探索,最后确定的方法可满足稀土杂质总量在0.00063％以上产品分析的要求。实验 (一)条件的选择 1.缓冲剂的选择:不同缓冲剂在稀土元素分析中的应用已有人进行过研究,值得注意的是氯化铯-碳粉已用于高纯氧化铕,氧化钇和氧化钕中微量稀土杂质的光谱测定。 Trace rare earth impurities in high purity rare earth oxides spectrometry, less reported at home and abroad. In this paper, we first explored the aspects of buffer, matrix and so on. The final determination method can meet the requirement of product analysis with the total amount of rare earth impurities above 0.00063%. Experimental conditions (a) the choice of conditions 1. The choice of buffer: Different buffers in the analysis of rare earth elements have been studied, it is noteworthy that cesium chloride - carbon powder has been used for high purity europium oxide, yttrium oxide And neodymium oxide trace rare earth impurities spectrometry.