| ICP-MS 法测定高纯氧化铕中稀土杂质的研究 |
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| 引用本文： | 尹明,李冰,曹心德,张岩.ICP-MS 法测定高纯氧化铕中稀土杂质的研究[J].分析试验室,1999,18(3):169-6. |
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| 作者姓名： | 尹明 李冰 曹心德 张岩 |
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| 作者单位： | 中国地质科学院岩矿测试技术研究所,北京,100037 |
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| 摘 要： | 深入考察了ＩＣＰ－ＭＳ法测定高纯氧化铕时基体对稀土杂质测定的影响，研究了Ｐ５０７萃淋树脂分离大量基体Ｅｕ２Ｏ３的实验条件，建立了采用内标补偿直接测定大部分稀土杂质和经Ｐ５０７萃淋树脂分离基体后测定被干扰离子Ｔｍ相结合的高纯Ｅｕ２Ｏ３中稀土杂质的ＩＣＰ－ＭＳ分析方法。方法检出限为０．００５～０．０２１μｇ／Ｌ，加标回收率为８４％～１１２％。ＲＳＤ为１．４％～８．１％。本法适用于质量分数为９９．９９％～９９．９９９９％的高纯Ｅｕ２Ｏ３中稀土杂质的分析。
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| 关 键 词： | 电感耦合等离子质谱(ICP-MS) 高纯氧化铕 稀土杂质 萃取色层分离 |
| 文章编号： | 1000-0720(1999)
03-001-06 |
| 修稿时间： | ：1998-05-0 |
Determination of Rare Earths Impurities in High Purity Eu2O3 by ICP-MS |
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| YIN Ming,LI Bing,CAO Xin-de,ZHANG Yan.Determination of Rare Earths Impurities in High Purity Eu2O3 by ICP-MS[J].Chinese Journal of Analysis Laboratory,1999,18(3):169-6. |
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| Authors: | YIN Ming LI Bing CAO Xin-de ZHANG Yan |
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| Abstract: | method for the determination of REE impurities in high purity Eu2O3 by
ICPMS is reported in this paper.The interferences from the matrix of Eu2O3 on the ICPMS
determination were studied.Matrix induced signal suppression effect was compensated by
internal standardization and extractionchromatographic separation with P507 was used to
separate Tm from the matrix to elimilate the matrixinduced polyatomic interference.The method
has been applied to the determination of 14 REE impurities in high purity Eu2O3.Detection
limits for REEs were 0.0050021 gL-1.Recoveries of standard addition were 84%112% with
precision of 1.4%8.1% RSD.The method can be applied to the determination of REE impurities in
Eu2O3 samples with purity of 99.99%99.9999%. |
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| Keywords: | Inductively coupled plasma mass spectrometry(ICPMS) high purity Eu2O3 rare earth impurity extractionchromatographic separation |
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