高纯氧化钇中痕量稀土杂质的柱分离富集和测定  

Separation and Determination of Trace RE Elements in HighPurity Yttrium Oxide by Column Chromatography

作　　者：黄卫红[1] 蔡冰[1] 胡斌[1] 江祖成[1] 

机构地区：[1]武汉大学化学系

出　　处：《中国稀土学报》1998年第1期92-94,共3页Journal of the Chinese Society of Rare Earths

摘　　要：对离子交换色层与电感耦合离子体原子发射光谱（ＩＣＰＡＥＳ）联用进行改进，用于高纯氧化钇中痕量稀土杂质的快速分离富集和测定。采用α羟基异丁酸（αＨＩＢＡ）作淋洗剂，对影响分离过程的主要因素（酸度、流速、试剂浓度等）、稀土杂质与试剂（αＨＩＢＡ）的再分离进行了研究。结果表明，分离可在８ｈ内完成，多数待测稀土元素的平均回收率为８０％～１０４％，可用于纯度为９９９９９％～９９９９９９％的高纯氧化钇分析。The separation of trace rare earth elements from high purity Y_2O_3 by cation exchange chromatography and the determination by inductively coupled plasmaatomic emission spectrometry(ICPAES) have been studied. α-Hydroxy-iso-butyric acid(α-HIBA) was used as eluting agent. The best conditions(pH, eluting rate, concentration of α-HIBA) and the method to separate the trace RE from α-HIBA have been studied as well. The whole separation lasted less than 8 h. To most REs the average recovery was 84%～104%.

关 键 词：高纯氧化钇 氧化钇 痕量 稀土杂质 ICP-AES 测定 

分 类 号：O614.33[理学—无机化学]