电感耦合等离子体质谱法测定原油中微量元素
ICP-MS Determination of Trace Elements in Crude Oil
摘 要
原油样品用硝酸和过氧化氢经高压密闭消解罐消解处理,采用电感耦合等离子体质谱法测定其中镁、铝、钒、铬、镍、铜、锌、钼、镉和铅等10种微量元素的含量。10种元素的检出限(3s)在0.012~0.300 μg·g-1之间。方法用于S-21油标准样品分析,测定值与认定值相吻合,相对标准偏差(n=5)在0.5%~5.0%之间。10种元素的回收率在93.3%~116.0%之间。
原油
微量元素
ICP-MS
Crude oil
Trace elements
Abstract
The sample of crude oil was digested with nitric acid and hydrogen peroxide in a closed vessel under pressure, and the contents of Mg, Al, V, Cr, Ni, Cu, Zn, Mo, Cd and Pb in the sample solution were determined by ICP-MS. Values of detection limit (3s) for the 10 elements were found in the range of 0.012-0.300 μg·g-1. The proposed method was applied to the analysis of an oil standard sample (S-21), results obtained was in conformity with the certified values, and RSD′s (n=5) found were in the range of 0.5%-5.0%. Values of recovery of the 10 elements were found in the range of 93.3%-116.0%.
中图分类号 O657.63
所属栏目
基金项目 海洋公益性行业科研专项(200705011);国家海洋局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(200920);国家海洋局第一海洋研究所基本科研业务费专项资金项目(2007G17)
收稿日期 2010/6/25
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备注杨春茹(1984-),女,河北人,硕士,主要研究方向为电感耦合等离子体质谱分析技术。
引用该论文: YANG Chun-ru,CHEN Fa-rong,LI Jing-xi,ZHENG Li,YANG Dong-fang,Wang Xiao-ru. ICP-MS Determination of Trace Elements in Crude Oil[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2011, 47(8): 946～948
杨春茹,陈发荣,李景喜,郑立,杨东方,王小如. 电感耦合等离子体质谱法测定原油中微量元素[J]. 理化检验－化学分册, 2011, 47(8): 946～948
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参考文献
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【5】WONDIMU T, GOESSLER W, IRGOLIC K J, et al. Microwave digestion of 'residual fuel oil' (NIST SRM 1543b) for the determination of trace elements by inductively coupled plasma-mass spectrometry［J］. Anal Chem, 2000,367:35-42．
【6】Al-SWAIDAN H M. Trace determination of vanadium and nickel in saudi arabian petroleum and petroleum products by microemulsion ICP-MS［J］. At Spectrosc, 1993,14(6):170-173．
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