纸质食品接触材料中7种多氯联苯的气相色谱-串联质谱法测定
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摘要
采用正己烷匀浆提取,浓硫酸净化,气相色谱-串联质谱仪检测,建立了纸质食品接触材料中7种多氯联苯残留的检测方法。样品经正己烷匀浆提取,浓硫酸净化后用气相色谱-串联质谱仪检测。7种多氯联苯的线性范围在0. 002～0. 4μg/mL,3个加标水平的平均回收率为89. 2%～100%,相对标准偏差为1. 9%～4. 4%,定量限在0. 005～0. 01μg/g。该方法适用于纸质食品接触材料中7种多氯联苯的残留分析。
A method was developed for determination of seven kinds of polychlorinated biphenyls residues in food contact paper materials with homogenate extraction and gas chromatography-tandem mass spectrometry. The results showed that average recoveries of seven kinds of PCBs( spiked at0. 01,0. 05 and 0. 25 μg/g,respectively) were in the range of 89. 2% ～ 100% with relative standard deviations of 1. 9% ～ 4. 4%. The linear range were 0. 002 ～ 0. 4 μg/m L,and the limits of quantitation were 0. 005 ～ 0. 01 μg/g. The method is suitable for the analysis of seven kinds of PCBs residues in food contact paper materials.
A method was developed for determination of seven kinds of polychlorinated biphenyls residues in food contact paper materials with homogenate extraction and gas chromatography-tandem mass spectrometry. The results showed that average recoveries of seven kinds of PCBs( spiked at0. 01,0. 05 and 0. 25 μg/g,respectively) were in the range of 89. 2% ～ 100% with relative standard deviations of 1. 9% ～ 4. 4%. The linear range were 0. 002 ～ 0. 4 μg/m L,and the limits of quantitation were 0. 005 ～ 0. 01 μg/g. The method is suitable for the analysis of seven kinds of PCBs residues in food contact paper materials.
引文
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[5] Zhao L,Zhou B L,Shen Y,et al. Jiangsu J of Agr Sci,2017,33(3):701赵玲,周蓓蕾,沈燕,等.江苏农业学报,2017,33(3):701
[6] Liu J,Huang X Y. PTCA(Part B:Chem Anal),2015,51(10):1182刘静,曾兴宇.理化检验-化学分册,2015,51(10):1182
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[10] Wang L,Li S S,Zhang Z,et al. Chinese J Chrom,2015,33(8):878王丽,李书书,张展,等.色谱,2015,33(8):878
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[15] Xu R J,Cai C P,Ding L P,et al. Food Sci,2016,37(24):222许仁杰,蔡春平,丁立平,等.食品科学,2016,37(24):222
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[19] GB 31604. 39—2016,Food contact materials and product—Determination of 7 specified polychlorinated biphenyls(PCBs)in food contact paper GB 31604. 39—2016,食品接触材料及制品食品接触用纸中多氯联苯的测定
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