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P₅₀₇萃淋树脂分离—火花源质谱法定量分析高纯Nd₂O₃中痕量稀土元素

Determination of Forteen Rare Earths Impurities in High Purity Nd₂O₃ by P₅₀₇ Extraction Chromatography Separation-Spark Source Mass Spectrometry

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【Author】 Sui Xigun;Wang Zishu;Huang Furong(Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China)

【机构】中国科学院长春应用化学研究所；

【摘要】本采用萃取色谱法，以Ｐ５０７萃淋树脂为固定相，以ＨＣｌ－ＮＨ４Ｃｌ体系为淋洗液，研究了高纯Ｎｄ２Ｏ３（９９．９９９％～９９．９９９９％）中稀土杂质与Ｎｄ基体的分离方法。选择螯合剂－活性碳柱富集淋洗液中痕量稀土，采用火花源质谱法分析，测定下限０．０１μｇ／ｇ。更多还原

【Abstract】 The separation of rare earths impurities in high purity Nd2O3 have been carried out with P507 extraction chromatograpby hydrochloric acid-ammonium chloride as eluant.The method of preconcentration and the determination conditions of spark source mass spectromatry have been selected.The determination requirement of rare earths impurities in 99.9999% Nd2O3 is achieved.更多还原