电感耦合等离子体质谱测定绿辉石中稀土元素
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摘要
绿辉石中含有微量的稀土元素,其对揭示成矿物质来源具有十分重要的意义。采用微波消解分解绿辉石单矿物,结合电感耦合等离子体质谱(ICP-MS)对绿辉石单矿物中14个痕量稀土元素进行测定。并采用~(103)Rh和~(185)Re作内标元素补偿基体效应和灵敏度漂移,方法的检出限为0. 006～0. 013μg/L,方法精密度(RSD)为0. 76%～2. 24%,方法回收率为87. 5%～106. 3%。此方法溶样效率高,简便快捷准确。
Omphacite contains trace rare earth elements,which is of great significance in revealing the source of ore-forming materials. Microwave digestion was used to decompose omphacite single minerals. 14 trace rare earth elements of omphacite single minerals were determined by ICP-MS.~(103)Rh and ~(185)Re were used as internal standard elements to compensate for matrix effect and sensitivity drift. The detection limit of this method was 0. 006 ～ 0. 013 μg/L,RSD was0. 76% ～ 2. 24%,and the recovery rate was 87. 5% ～ 106. 3%. This method has the advantages of high sample dissolution efficiency,simplicity,rapidity and accuracy.
Omphacite contains trace rare earth elements,which is of great significance in revealing the source of ore-forming materials. Microwave digestion was used to decompose omphacite single minerals. 14 trace rare earth elements of omphacite single minerals were determined by ICP-MS.~(103)Rh and ~(185)Re were used as internal standard elements to compensate for matrix effect and sensitivity drift. The detection limit of this method was 0. 006 ～ 0. 013 μg/L,RSD was0. 76% ～ 2. 24%,and the recovery rate was 87. 5% ～ 106. 3%. This method has the advantages of high sample dissolution efficiency,simplicity,rapidity and accuracy.
引文
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[2]刘攀攀,陈正,孙国新,李宏.稀土矿区及周边水稻田中稀土元素的生物迁移积累特征[J].环境科学学报,2016,36(3):1007.
[3]张楠,王家松,吴磊,等.电感耦合等离子体质谱法测定石榴石中痕量稀土元素[J].广州化工,2015,43(19):108-110.
[4] Ozcan Adnan,Ozcan A Safa. Adsorption of Acid Red 57 from aqueous solutions onto surfactant-modified sepiolite[J]. Journal of Hazardous Materials,2005,125(1-3):252-259.
[5]王佩佩,李霄,宋伟娇.微波消解-电感耦合等离子体质谱法测定地质样品中稀土元素[J].分析测试学报,2016,35(2):235-240.
[6]马莉,司晗.微波消解样品-电感耦合等离子体质谱法同时测定土壤中重金属元素和稀土元素[J].环境科学导刊,2016,35(2):88-91.
[7]陈永欣,黎香荣,韦新红,等.微波消解-电感耦合等离子体质谱法测定土壤和沉积物中痕量稀土元素[J].岩矿测试,2011,30(5):560-565.
[8]高海荣.微波消解样品-电感耦合等离子体质谱法测定土壤中稀土元素[J].理化检验(化学分册),2013,49(10):1185-1187.
[9]张楠,徐铁民,吴良英,等.微波消解-电感耦合等离子体质谱法测定海泡石中的稀土元素[J].岩矿测试,2018,37(6):644-649.
[10]黄凤妹.微波消解-电感耦合等离子体质谱法检测土壤中16种稀土元素[J].中国无机分析化学,2012,2(1):43-46.