PSO萃取色层分离原子发射光谱测定氧化钇中十四个稀土杂质  

Determination of 14 Rare Earth Impurities in Y 2O 3 by Petroleum Sulfoxide Extraction Chromatography

作　　者：李武帅[1] 彭春霖[1] 袁甫[1] 綦文娣[1] 

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53-56,共4页Spectroscopy and Spectral Analysis

摘　　要：本文将石油亚砜（简称ＰＳＯ）浸渍在一种特制的吸附树脂上，用ＰＳＯ为固定相的萃取色层法分离氧化钇中痕量稀土杂质，可以分析６～７Ｎ级的氧化钇样品，加入试验的回收率为６７％～１２０％，相对标准偏差为±４．０％～１９．４％。Petroleum sulfoxide NH 4SCN extraction chromatography was developed for the separation of Y from other rare earth elements.Some chromatographic parameters were chosen and separation factors between Y and other rare earth elements were determined.A column of resin coated with petroleum sulfoxide was used.The Y in the sample was eluted with NH 4SCN,then titrated with EDTA.The recovery was 67% 120% and relative standard deviation ±4 0% 19 4%.This method can be applied to the determination of trace amounts of rare earth impurities in Y 2O 3 with a purity of 99 999 9% 99 999 99%.

关 键 词：PSO 氧化钇 稀土杂质 测定 萃取色层法 

分 类 号：O614.33[理学—无机化学] TQ133.3[理学—化学]