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液-液萃取/气相色谱-串联质谱测定纸制食品接触材料中9种挥发性全氟化合物前体物的迁移量
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作者单位
张子豪,肖前,钟怀宁,李全忠,刘莹峰,李丹,郑建国 广东出入境检验检疫局 
基金项目:国家重点研发计划(2016YFF0203705)
中文摘要:采用气相色谱-串联质谱(GC-MS/MS)技术建立了纸制食品接触材料中全氟脂肪醇、全氟丙烯酸酯和全氟磺酰胺等9种挥发性全氟化合物前体物的测定方法。样品采用欧盟(EU)2017/752中食品模拟物3%乙酸、10%乙醇、50%乙醇和橄榄油浸泡,水基模拟物用二氯甲烷萃取,橄榄油浸泡液用乙腈萃取,DB-5MS(30 m×0.25 mm×0.25 μm)色谱柱分离后,采用多反应监测(MRM)模式进行检测。9种化合物在5~500 μg/L质量浓度范围内与峰面积呈线性关系。在3%乙酸、10%乙醇、50%乙醇及橄榄油食品模拟物中的方法定量下限分别为3.3~4.4、3.5~4.2、3.3~4.9 μg/L和4.2~5.1 ng/g。样品加标回收率为85.0%~115%,相对标准偏差(RSD,n=6)≤7.8%。该法快速可靠、准确简便,适用于纸制食品接触材料中全氟化合物前体物的分析检测。
中文关键词:纸制食品接触材料  含氟化合物  前体物  迁移  液-液萃取  气相色谱-串联质谱(GC-MS/MS)
 
Analysis on Migration of 9 Volatile Perfluorinated Compounds Precursors in Food-contact Paper Based Materials by Gas Chromatography-Tandem Mass Spectrometry with Liquid-Liquid Extraction
Abstract:A gas chromatography-tandem mass spectrometric(GC-MS/MS)method was developed for the determination of 9 volatile perfluorinated compounds precursors including perfluorinated fatty alcohol,perfluorinated fatty alcohol acrylate and perfluorosulfonamide fatty alcohol,using 3% acetic acid,10% alcohol,50% alcohol,and olive oil as food simulants according to(EU) 2017/752.The water-based and olive oil simulants were extracted with dichloromethane and acetonitrile,respectively.The volatile perfluorinated compounds precursors were separated on a DB-5MS(30 m×0.25 mm×0.25 μm)column,and analyzed under multiple reaction monitoring mode.The cailbration curves for 9 analytes were linear in the range of 5-500 μg/L,with the quantitation limits of 3.3-4.4 μg/L for 3% acetic acid,3.5-4.2 μg/L for 10% alcohol,3.3-4.9 μg/L for 50% alcohol and 4.2-5.1 ng/g for olive oil,respectively.The spiked recoveries for the samples ranged from 85.0% to 115% with the relative standard deviations(RSDs)not more than 7.8%.This method was fast,precise and convenient,and was appropriate for the determination of 9 perfluorinated compounds precursors in food-contact paper based materials.
Key Words:food-contact paper based materials  fluorinated compounds  precursors  migration  liquid-liquid extraction  gas chromatography-tandem mass spectrometry(GC-MS/MS)
引用本文:张子豪,肖前,钟怀宁,李全忠,刘莹峰,李丹,郑建国.液-液萃取/气相色谱-串联质谱测定纸制食品接触材料中9种挥发性全氟化合物前体物的迁移量[J].分析测试学报,2018,37(9):1002-1007.
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