电感耦合等离子体质谱法测定卷烟烟气中重金属元素
ICP-MS Determination of Heavy Metal Elements in Cigarette Smoke
摘 要
提出了用电感耦合等离子体质谱法测定卷烟烟气中重金属元素铅、砷、镉、铬、镍和汞的含量.以硝酸溶液为捕集剂,用自制的吸收器收集卷烟烟气;以钪、钇、铟、铋的混合标准溶液作在线内标校正基体效应,通过选择适当的待测元素同位素消除光谱干扰.6种元素的检出限(3s/k)均低于0.01 μg·L-1.方法用于4种卷烟样品的测定,所得6种元素的回收率在89%~103%之间,相对标准偏差(n=5)在2.4%~3.4%之间.
卷烟烟气
重金属元素
ICP-MS
Cigarette smoke
Heavy metal elements
Abstract
The contents of Pb,As,Cd,Cr,Ni and Hg in cigarette smoke were determined by ICP-MS.The HNO3 solution was used as trapping agent,and self-made absorber was used to absorb cigarette smoke.Matrix effect was corrected with mixed standard solution of Sc,Y,In and Bi as online internal standard,and spectral interferences were eliminated by choosing suitable isotopes of elements to be measured.Detection limits (3s/k) of the 6 elements were less than 0.01 μg·L.The proposed method was applied in the analysis of 4 kinds of cigarette samples,giving values of recovery in the range of 89%-103%,and RSD′s (n=5) in the range of 2.4%-3.4%.
中图分类号 O657.63
所属栏目 工作简报
基金项目 云南烟草公司(2006B305)、云南省自然科学基金(05E024M)和云南省中青年学术带头人培养基金(2004PY01-32)资助项目
收稿日期 2008/6/8
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备注李银科(1984-),男,云南大理人,硕士生,从事烟草化学研究工作.
引用该论文: LI Yin-ke,HE Bin,JIN Yong-can,HU Qiu-fen,YANG Guang-yu. ICP-MS Determination of Heavy Metal Elements in Cigarette Smoke[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2009, 45(8): 913～915
李银科,贺宾,金永灿,胡秋芬,杨光宇. 电感耦合等离子体质谱法测定卷烟烟气中重金属元素[J]. 理化检验－化学分册, 2009, 45(8): 913～915
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参考文献
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【2】马名扬,张朝阳,毕鸿亮.吸烟过程中重金属挥发量的测定[J].光谱实验室,2005,22(4):851-854．
【3】石杰,李力,胡清源,等.烟草中微量元素和重金属检测进展[J].烟草科技,2006,26(2):40-45．
【4】章连香,符斌,李华昌.电感耦合等离子体质谱法应用的进展[J].铀矿冶,2004,6(1):101-106．
【5】蒋次清,毕勇,李忠,等.ICP-MS同时测定烟草及土壤中21种元素[J].烟草科学研究,2000(2):43-45．
【6】谢涛,黄泳彤,徐旸.用ICP-MS法测定卷烟烟气中的重金属元素[J].烟草科技,2003,15(1):27-29．
【7】田海英,谢复炜,吴鸣.环境烟草烟气中VOCs的分析方法综述[J].烟草科技,2005,17(3):29-32．
【8】GREEN C R.Advances in analytical methodology of leaf and smoke[J].Recent Advance in Tobacco Sciences,2004,48(6):123-156．
【9】No MS-14Determination of Heavy Metal ions in Mainstream Tobacco Smoke,Proposed Analytical Method[S]．
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