| 不同原油中金属元素的测定及聚类分析 |
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| 引用本文： | 李景喜,陈发荣,崔维刚,杨春茹,王小如. 不同原油中金属元素的测定及聚类分析[J]. 分析测试学报, 2010, 29(6). DOI: 10.3969/j.issn.1004-4957.2010.06.006 |
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| 作者姓名： | 李景喜 陈发荣 崔维刚 杨春茹 王小如 |
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| 作者单位： | 1. 国家海洋局第一海洋研究所,生态研究中心,山东,青岛,266061
2. 国家海洋局第一海洋研究所,生态研究中心,山东,青岛,266061;厦门大学,化学化工学院,现代分析科学教育部重点实验室,福建,厦门,361005 |
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| 基金项目： | 海洋公益性行业科研专项资助项目，国家海洋局第一海洋研究所基本科研业务费专项资金资助项目，海洋溢油鉴别与损害评估技术重点实验室开放基金资助项目 |
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| 摘 要： | 采用二氯甲烷溶解、分散原油样品,以浓HNO3-H2O2为消解体系,采用微波法对原油进行消解,利用电感耦合等离子体质谱法(ICP-MS)测定原油中的V、Ni、Cu、Fe、Cr、Zn、Pb、Co、Mo、Ag等17种微量金属元素;并以 6Li、45Sc、72Ge、89Y、115In、159Tb、209Bi为内标元素,补偿基体效应,选择适当的待测元素同位素克服质谱干扰,优化了实验条件.结果表明,原油中大多微量金属元素的检出限达到ng/L,仅Fe、As、Sb 3种元素的检出限相对较高;各元素线性关系良好,相关系数r不低于0.999 5;方法精密度较高,相对标准偏差(RSD)不大于5.0%,准确度较好,相对误差不高于10%.对不同原油样品以Ni/V与Fe/V值为变量进行聚类分析,结果发现,国内与国外不同地区原油样品具有明显差异性.
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| 关 键 词： | 微量金属元素 原油 |
Determination of Trace Metal Elements in Different Crude Oils and Their Cluster Analysis |
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| LI Jing-xi,CHEN Fa-rong,CUI Wei-gang,YANG Chun-ru,WANG Xiao-ru. Determination of Trace Metal Elements in Different Crude Oils and Their Cluster Analysis[J]. Journal of Instrumental Analysis, 2010, 29(6). DOI: 10.3969/j.issn.1004-4957.2010.06.006 |
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| Authors: | LI Jing-xi CHEN Fa-rong CUI Wei-gang YANG Chun-ru WANG Xiao-ru |
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| Affiliation: | LI Jing-xi1,CHEN Fa-rong1,CUI Wei-gang1,YANG Chun-ru1,WANG Xiao-ru1,2(1.Marine Ecology Research Center,First Institute of Oceanography of State Oceanic Administration,Qingdao 266061,China,2.The Key Laboratory of Analytical Science of Ministry of Education,College of Chemistry and Chemical Engineering,Xiamen University,Xiamen 361005,China) |
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| Abstract: | An inductively coupled plasma mass spectrometric(ICP-MS) method was developed for the determination of V,Ni,Cu,Fe,Cr,Zn,Pb,Co,Mo,Ag,etc.in different crude oil.The oil sample dispersed firstly in organic solvent(CH2Cl2) and was digestded by microwave using HNO3-H2O2 as oxidant.6Li,45Sc,72Ge,89Y,115In,159Tb and 209Bi were selected as the internal standard elements.The matrix effect was compensated and the MS interference was corrected by selecting the suitable isotope of the elements.The experimental conditio... |
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| Keywords: | ICP-MS |
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