| 高分辨电感耦合等离子体质谱法测定地球化学样品中钪钇和稀土元素 |
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| 引用本文： | 白金峰,张勤,孙晓玲,董永胜,范辉,徐进力,刘亚轩.高分辨电感耦合等离子体质谱法测定地球化学样品中钪钇和稀土元素[J].岩矿测试,2011,30(1):17-22. |
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| 作者姓名： | 白金峰 张勤 孙晓玲 董永胜 范辉 徐进力 刘亚轩 |
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| 作者单位： | 1. 中国地质科学院地球物理地球化学勘查研究所,河北,廊坊065000
2. 内蒙古第三地质矿产勘查开发有限责任公司,内蒙古,呼和浩特010050 |
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| 基金项目： | 中央级公益性科研院所基本科研业务费专项资金资助 |
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| 摘 要： | 建立了高分辨电感耦合等离子体质谱法(HR-ICP-MS)测定地球化学样品中钪、钇、镧、铈、镨、钕、钐、铕、钆、铽、镝、钬、铒、铥、镱和镥的分析方法。样品经氢氟酸-硝酸-硫酸-王水消解,试液直接用HR-ICP-MS测定钪、钇和14种稀土元素。用高分辨模式有效地避免了多原子离子及难熔氧化物离子对待测元素测定的干扰,为钪、钇和14种稀土元素选择了最佳的测定同位素和合适的分辨率;用地球化学标准物质制备的溶液优化仪器工作参数,确定了最佳的仪器测定条件。方法检出限(6σ)为0.003～0.013μg/g(稀释因子为1000),相对标准偏差(RSD,n=12)小于6%。方法经国家一级地球化学标准物质验证,测定值与标准值吻合。
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| 关 键 词： | 钪 钇 稀土元素 地球化学样品 高分辨电感耦合等离子体质谱法 |
| 收稿时间： | 2010/1/14 0:00:00 |
| 修稿时间： | 2010/5/27 0:00:00 |
Determination of Sc, Y and Rare Earth Elements in Geochemical Samples by High Resolution Inductively Coupled Plasma-Mass Spectrometry |
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| BAI Jin-feng,ZHANG Qin,SUN Xiao-ling,DONG Yong-sheng,FAN Hui,XU Jin-li and LIU Ya-xuan.Determination of Sc, Y and Rare Earth Elements in Geochemical Samples by High Resolution Inductively Coupled Plasma-Mass Spectrometry[J].Rock and Mineral Analysis,2011,30(1):17-22. |
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| Authors: | BAI Jin-feng ZHANG Qin SUN Xiao-ling DONG Yong-sheng FAN Hui XU Jin-li and LIU Ya-xuan |
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| Institution: | Institute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences, Langfang 065000, China;Institute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences, Langfang 065000, China;Institute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences, Langfang 065000, China;No.3 Geology Mineral Resources Exploration and Development Co. LTD of Inner Mongolia, Huhehaote 010050, China;Institute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences, Langfang 065000, China;Institute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences, Langfang 065000, China;Institute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences, Langfang 065000, China |
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| Abstract: | An analytical method for the determination of Sc,Y and 14 rare earth elements(La,Ce,P,Nd,Sm,Eu,Gd,Tb,Dy,Ho,Er,Tm,Yb,Lu) by high resolution inductively coupled plasma-mass spectrometry(HR-ICP-MS) has been developed.Samples were decomposed by HF-HNO3-H2SO4-aqua regia,then 16 elements above in the solution were directly analyzed by HR-ICP-MS.The spectra interferences from polyatomic ions and oxide ions(MO+) could be avoided by measuring at high resolution mode.The optimal determination isotopes and appropriate resolution for rare earth elements(REEs) were selected.The operating parameters of HR-ICP-MS were optimized by testing geochemical standard materials with plenty of matrix.The detection limits(6σ) of the method for REEs were 0.003～0.013 μg/g(DF=1000).The relative standard deviation(RSD) was less than 6%(n=12).The method has been applied to determination of Sc,Y and REEs in geochemical national standard reference materials and the analytical results were in agreement with the certified values. |
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| Keywords: | scandium yttrium rare earth elements geochemical sample high resolution inductively coupled plasma-mass spectrometry |
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