能量色散X射线荧光光谱法快速测定烟草中的镉和铅
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摘要
建立了能量色散X射线荧光光谱法(EDXRF)快速测定烟草中的镉和铅的方法。研究表明:在优化的试验条件下,方法的线性关系良好,镉和铅的线性范围分别为0.18~4.73 mg·kg~(-1)和0.20~3.85 mg·kg~(-1),检出限分别为0.054 mg·kg~(-1)和0.06 mg·kg~(-1),测定结果与烟草行业标准ICP-MS法定值的相对偏差均小于5%,RSD均小于7.4%,表明该方法适用于对烟草中的镉、铅进行快速检测。
A method for rapid determination of cadmium and lead in tobacco with energy dispersive X ray fluorescence spectrometry was developed. The influences of different forms and mass of sample were studied, while parameters of instrument were optimized. For the detection of cadmium, the linear correlation coefficient was 0.9937, the limit of detection was 0.054 mg·kg~(-1), the linear range was from 0.18 to 4.73 mg·kg~(-1). And for the detection of lead, the linear correlation coefficient was 0.9908, the limit of detection was 0.06 mg·kg~(-1), and the linear range was from 0.20 to 3.85 mg·kg~(-1). The results proved that,in comparison with inductively coupled plasma mass spectrometry(ICP-MS), energy dispersive X ray fluorescence spectrometry can be used to rapidly detect cadmium and lead in tobacco.
A method for rapid determination of cadmium and lead in tobacco with energy dispersive X ray fluorescence spectrometry was developed. The influences of different forms and mass of sample were studied, while parameters of instrument were optimized. For the detection of cadmium, the linear correlation coefficient was 0.9937, the limit of detection was 0.054 mg·kg~(-1), the linear range was from 0.18 to 4.73 mg·kg~(-1). And for the detection of lead, the linear correlation coefficient was 0.9908, the limit of detection was 0.06 mg·kg~(-1), and the linear range was from 0.20 to 3.85 mg·kg~(-1). The results proved that,in comparison with inductively coupled plasma mass spectrometry(ICP-MS), energy dispersive X ray fluorescence spectrometry can be used to rapidly detect cadmium and lead in tobacco.
引文
[1]张艳玲,周汉平.烟草重金属研究概述[J].烟草科技,2004,(12):20-23.ZHANG Yanling,ZHOU Hanping.Summary on study of heavy metal elments in tobacco[J].Tobacco Science&Technology/Tobacco Chemistry,2004,(12):20-23.
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[3]Rzymski P.,Rzymski P.and K.Katarzyna etc.Metal status in human endometrium:Relation to cigarette smoking and histological lesions[J].Environment Research,2014,132:328-338.
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[5]张艳玲,尹启生,周汉平,等.中国烟叶铅、镉、砷的含量及分布特征[J].烟草科技,2006,(11):49-52.ZHANG Yanling,YIN Qisheng,ZHOU Hanping,et al.Contents and distribution of Pb,Cd and As in Chinese tobacco leaves[J].Tobacco Science&Technology,2006,(11):49-52.
[6]郎思曼,王龙宪,许自成,等.烟草对重金属的吸收分布特征及影响研究综述[J].江西农业学报,2012,24(11):93-99.LANG Siman,WANG Longxian,XU Zicheng,et al.Absorption and distribution of heavy metal in tobacco and its influencing factors[J].Acta Agriculturae Jiangxi,2012,24(11):93-99.
[7]田晓辉,樊新顺,陈盈盈,等.紫外可见分光光度法测定烟草薄片中铁和钙的含量[J].河北化工,2010,33(3):64-66.TIAN Xiaohui,FAN Xinshun,CHEN Yingying,et al.Determination of iron and calcium in the tobacco sheet by UV-Vis spectrophotometry[J].Heibei Chemical Engineering and Industry,2010,33(3):64-66.
[8]孙力,张群芳,张强,等.微波灰化-分光光度法测定烟草料液中的铅[J].光谱实验室,2012,29(2):921-924.SUNli,ZHANG Qun fang,ZHANG Qiang,et al.Determination of lead in to baccosauce by spectrophotometry[J].Chinese Journal of Spectroscopy Laborratory,2012,29(2):921-924.
[9]古君平,胡静,周朗君,等.原子吸收光谱法测定烟叶中的重金属总量及形态分析[J].分析测试学报,2015,34(1):111-114.GU Junping,HU Jing,ZHOU Langjun,et al.Determination of total amount of heavy metals by atomic absorption spectrometry and their speciation analysis in tobacco[J].Journal of Instrumental Analysis,2015,34(1):111-114.
[10]周雯,许锴霖,岳勇,等.石墨炉原子吸收法测定卷烟主流烟气中的砷、铅、镉、铬、镍[J].湖南农业大学学报,2012,38(5):562-566.ZHOU Wen,XU Kailin,YUE Yong,et al.Determination of arsenic,lead,cadmium,chromium,nickel in mainstream smoke of cigarette by graphite furnace atomic absorption spectrometry[J].Journal of Hunan Agricultural University(Natural Sciences),2012,38(5):562-566.
[11]黄海涛,李忠,陈章玉,等.固相萃取富集-高效液相色谱法测定烟草和烟草添加剂中的重金属元素[J].理化检验-化学分册,2004,40(5):251-254.HUANG Haitao,LI Zhong,CHEN Zhangyu,et al.HPLC determination of some heavy metal elements in tobacco and tobacco additives after preconcentration by solid phase extraction[J].PTCA(Part B:Chemical analysis,2004,40(5):251-254.
[12]朱书秀,斯文,陈晓水,等.动态反应池-电感耦合等离子体质谱法测定烟草中的铬[J].分析仪器,2015(2):12-15.ZHU Shuxiu,SI Wen,CHEN Xiaoshui,et al.Determination of Cr in tobacco by ICP-MS with dynamic reation cell mode[J].Analytical Instruments,2015(2):12-15.
[13]黄旭,徐子刚.微波消解-电感耦合等离子体质谱法测定烟草中的重金属元素[J].浙江大学学报(理学版),2007,34(6):658-660.HUANG Xu,XU Zigang.Determination of the heavy metal elements in tobacco by ICP-MS with microwave digestion[J].Journal of Zhejiang University(Science Edition),2007,34(6):658-660.
[14]YC/T 380-2010烟草及烟草制品铬、镍、砷、硒、镉、铅的测定电感耦合等离子体质谱法[S].北京:中国标准出版社,2011.YC/T 380-2010 To bacco and To bacco product sDetermination of chromium,nickel,arsenic,selenium,cadmium,lead-Inductively Coupled plasma mass spectrometry method[S].Beijing:China Standards Press,2011.
[15]吉昂,卓尚君,李国会.能量色散X射线荧光光谱[M].北京:科学出版社,2011:59-60.JI Ang,ZHUO Shangjun,LI Guohui.Energy dispersive x-ray florescence[M].Beijing:Science Press,2011:59-60.
[2]Stohs S.J.,Bagchi D.,M.Bagchi.Toxicity of Trace Elements in Tobacco Smoke[J].Inhalation Toxicology,1997,9:867-890.
[3]Rzymski P.,Rzymski P.and K.Katarzyna etc.Metal status in human endometrium:Relation to cigarette smoking and histological lesions[J].Environment Research,2014,132:328-338.
[4]杨建平.烟草中镉与肺癌的关系[J].赤峰学院学报,2006,22(1):66-67.YANG Jianping.Relationship between cadmium and lung cancer in tobacco[J].Journal of Chifeng College,2006,22(1):66-67.
[5]张艳玲,尹启生,周汉平,等.中国烟叶铅、镉、砷的含量及分布特征[J].烟草科技,2006,(11):49-52.ZHANG Yanling,YIN Qisheng,ZHOU Hanping,et al.Contents and distribution of Pb,Cd and As in Chinese tobacco leaves[J].Tobacco Science&Technology,2006,(11):49-52.
[6]郎思曼,王龙宪,许自成,等.烟草对重金属的吸收分布特征及影响研究综述[J].江西农业学报,2012,24(11):93-99.LANG Siman,WANG Longxian,XU Zicheng,et al.Absorption and distribution of heavy metal in tobacco and its influencing factors[J].Acta Agriculturae Jiangxi,2012,24(11):93-99.
[7]田晓辉,樊新顺,陈盈盈,等.紫外可见分光光度法测定烟草薄片中铁和钙的含量[J].河北化工,2010,33(3):64-66.TIAN Xiaohui,FAN Xinshun,CHEN Yingying,et al.Determination of iron and calcium in the tobacco sheet by UV-Vis spectrophotometry[J].Heibei Chemical Engineering and Industry,2010,33(3):64-66.
[8]孙力,张群芳,张强,等.微波灰化-分光光度法测定烟草料液中的铅[J].光谱实验室,2012,29(2):921-924.SUNli,ZHANG Qun fang,ZHANG Qiang,et al.Determination of lead in to baccosauce by spectrophotometry[J].Chinese Journal of Spectroscopy Laborratory,2012,29(2):921-924.
[9]古君平,胡静,周朗君,等.原子吸收光谱法测定烟叶中的重金属总量及形态分析[J].分析测试学报,2015,34(1):111-114.GU Junping,HU Jing,ZHOU Langjun,et al.Determination of total amount of heavy metals by atomic absorption spectrometry and their speciation analysis in tobacco[J].Journal of Instrumental Analysis,2015,34(1):111-114.
[10]周雯,许锴霖,岳勇,等.石墨炉原子吸收法测定卷烟主流烟气中的砷、铅、镉、铬、镍[J].湖南农业大学学报,2012,38(5):562-566.ZHOU Wen,XU Kailin,YUE Yong,et al.Determination of arsenic,lead,cadmium,chromium,nickel in mainstream smoke of cigarette by graphite furnace atomic absorption spectrometry[J].Journal of Hunan Agricultural University(Natural Sciences),2012,38(5):562-566.
[11]黄海涛,李忠,陈章玉,等.固相萃取富集-高效液相色谱法测定烟草和烟草添加剂中的重金属元素[J].理化检验-化学分册,2004,40(5):251-254.HUANG Haitao,LI Zhong,CHEN Zhangyu,et al.HPLC determination of some heavy metal elements in tobacco and tobacco additives after preconcentration by solid phase extraction[J].PTCA(Part B:Chemical analysis,2004,40(5):251-254.
[12]朱书秀,斯文,陈晓水,等.动态反应池-电感耦合等离子体质谱法测定烟草中的铬[J].分析仪器,2015(2):12-15.ZHU Shuxiu,SI Wen,CHEN Xiaoshui,et al.Determination of Cr in tobacco by ICP-MS with dynamic reation cell mode[J].Analytical Instruments,2015(2):12-15.
[13]黄旭,徐子刚.微波消解-电感耦合等离子体质谱法测定烟草中的重金属元素[J].浙江大学学报(理学版),2007,34(6):658-660.HUANG Xu,XU Zigang.Determination of the heavy metal elements in tobacco by ICP-MS with microwave digestion[J].Journal of Zhejiang University(Science Edition),2007,34(6):658-660.
[14]YC/T 380-2010烟草及烟草制品铬、镍、砷、硒、镉、铅的测定电感耦合等离子体质谱法[S].北京:中国标准出版社,2011.YC/T 380-2010 To bacco and To bacco product sDetermination of chromium,nickel,arsenic,selenium,cadmium,lead-Inductively Coupled plasma mass spectrometry method[S].Beijing:China Standards Press,2011.
[15]吉昂,卓尚君,李国会.能量色散X射线荧光光谱[M].北京:科学出版社,2011:59-60.JI Ang,ZHUO Shangjun,LI Guohui.Energy dispersive x-ray florescence[M].Beijing:Science Press,2011:59-60.
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