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三重串联电感耦合等离子质谱法直接测定高纯氧化铕中14种稀土杂质元素

Direct determination of 14 trace rare earth elements in high purity Eu₂O₃ by triple quadrupole inductively coupled-plasma mass spectrometry

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【Author】 Xu Zhiliang;Tong Yingdong;Liu Yonglin;Analysis and Testing Research Institution Of Jiangxi Province;

【摘要】本文运用三重串联电感耦合等离子质谱（ICP-MS/MS）法直接测定高纯氧化铕中的14种稀土杂质元素的方法。采用。He和O₂碰撞反应池在串联质谱MS/MS模式下测定,有效克服了基体铕对待测元素的干扰。在选定的条件下,样品加标1ng/ml 14种混合稀土标样测得的回收率为90.50-103.60%,相对标准偏差（RSD）为0.17%-1.97%。本方法简单实用,能够满足纯度5N（99.999%）及以上的高纯铕稀土基体中14种稀土杂质元素的直接测定。更多还原

【Abstract】 A method was developed for directly determination of fourteen different impurities in high purity europium by ICP-MS /MS.The interferences on analysis were efficiently removed by using He and O₂ reaction cell gas in MS /MS mode.Under the optimized conditions,the spike recoveries of 1ng/ml REE standard additions were 90.50%-103.60%for fourteen elements.The RSDs signal stability of0.17%-1.97%.The method was suitable for the direct determination of impurities in high purity europium of 99.999%or above.更多还原