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本文报告了一个高纯氧化钐中稀土杂质的分析方法。使用α——羟基异丁酸作淋洗剂通过离子交换分离把高纯氧化钐中的稀土杂质镨、钕、铕、钆、钇富集起来,经氨水分离,灼烧后进行光谱测定。采用碳酸锂和氯化钠作缓冲剂,直流电弧阳极激发粉末法。在富集二百倍时,氧化镨、氧化钕、氧化铕、氧化钆、氧化钇“五个杂质元素”的测定下限分别为0.0025%、0.0001%、0.0001%、0.0001%、0.00005%,其回收率绝大部分在80%以上。离子交换分离部分经示踪原子鉴定,氧化钕、氧化铕的回收率分别为80.3%、82.9%淋洗流程为16小时。光谱测定部分的五个杂质元素百分相对均方误差不大于±13%。
This paper reports a method for the analysis of rare earth impurities in high-purity samarium oxide. Using α-hydroxyisobutyric acid as eluent, the rare earth impurities praseodymium, neodymium, europium, gadolinium and yttrium in high-purity samarium oxide were enriched by ion exchange separation, separated by ammonia and then burned for spectrometry. Using lithium carbonate and sodium chloride as a buffer, DC arc anodic excitation powder method. The concentrations of praseodymium oxide, neodymium oxide, europium oxide, gadolinium oxide and yttrium oxide were 0.0025%, 0.0001%, 0.0001%, 0.0001% and 0.00005%, respectively Most of the rate of more than 80%. Ion-exchange separation part of the tracer atomic identification, neodymium oxide, europium oxide recovery rates were 80.3%, 82.9% leaching process for 16 hours. Spectral determination part of the five impurity elements relative mean square error less than ± 13%.