ICP-MS Determination of Trace Metal Elements in Methylbenzene
摘 要
甲苯样品经硝酸-乙醇-水(0.04+1+1)溶液稀释,超声分散均匀后,用电感耦合等离子体质谱法测定其中锰、铁、钴、镍、锌、银、镉和铅等金属元素含量,选择铼作为内标元素。方法的检出限(3s)在0.012 7~0.690 ng·L-1之间。方法用于甲苯样品中金属元素的测定,加标回收率在71.9%~119%之间;测定值的相对标准偏差(n=6)均不大于8%。
Abstract
Sample of methylbenzene was diluted with mixed solution of HNO3-ethanol-water (0.04+1+1) and dispersed ultrasonically. The contents of the metal elements (i.e., Mn, Fe, Co, Ni, Zn, Ag, Cd and Pb) in sample solution were determined by ICP-MS with Re as internal standard. Values of detection limit (3s) of the method were found in the range of 0.012 7-0.690 ng·L-1. The proposed method was applied to the determination of metal elements in sample of methylbenzene, giving values of recovery obtained by standard addition method, in the range of 71.9%-119% with values of RSD′s (n=6) ≤8%.
中图分类号 O657.3
所属栏目 工作简报
基金项目 海洋公益性行业科研专项(201005034-3);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研究基金(A201111);国家海洋局青年海洋科学基金(2011524)
收稿日期 2011/11/18
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联系人作者李俊飞(jxli@fio.org.cn)
备注李俊飞(1986-),女,山东聊城人,硕士研究生,主要从事分析化学研究。
引用该论文: LI Jun-fei,LI Jing-xi,CHEN Jun-hui,ZHENG li,HAN Bin,WANG Zhi-guang,LI Fang. ICP-MS Determination of Trace Metal Elements in Methylbenzene[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2013, 49(2): 190~192
李俊飞,李景喜,陈军辉,郑立,韩彬,王志广,李昉. 电感耦合等离子体质谱法测定甲苯中微量金属元素[J]. 理化检验-化学分册, 2013, 49(2): 190~192
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