A high performance liquid chromatography-tandem mass spectrometric (HPLC-MS/MS)method was developed for the determination of the migration of 27 perfluorinated compounds in food contact materials using 3% acetic acid,10% alcohol,50% alcohol and olive oil as food simulants.Samples were soaked in 1 L different kinds of food simulants every 6 dm2 food contact materials according to (EU) No.10/2011.The water-based simulant samples could be analyzed directly after filteration,and the olive oil stimulant samples should be extracted with acetonitrile before analysis.Thesimulated solution samples were separated on a C18 column with methanol-water as mobile phase,and analyzed under multiple reaction monitoring(MRM) mode.The results showed that there existed good linearities(r >0.999 1) for 27 perfluorinated compounds in the range of 1-1 000 μg/L.The LOQs of PCFs were in the range of 0.28-9.85 μg/kg in food simulants.The recoveries for 27 perfluorinated compounds in blank samples at two spiked levels of 10 and 100 ng ranged from 82.6% to 112.1% with relative standard deviations(RSDs) of 2.2%-7.5%.%建立了食品接触材料迁移模拟环境中27种全氟化合物的高效液相色谱-串联质谱检测方法.选取乙酸(3%)、乙醇(10%、50%)和橄榄油作为食品模拟物,模拟了食品接触材料在与不同类型食物接触下的迁移行为,根据(EU)No.10/2011的要求对样品进行处理,每6 dm2食品接触材料加入1L食品模拟物浸泡.水相模拟物经过滤后直接检测,橄榄油经乙腈提取后进行检测.模拟溶液样品以甲醇-水混合溶液为流动相,经C18色谱柱分离,在MRM模式下进行检测.结果表明:全氟化合物在1~1 000 μg/L质量浓度范围内线性关系良好(r >0.999 1);全氟化合物在食物模拟物中的定量下限为0.28 ~9.85μg/kg;对空白样品进行10、100 ng两个浓度水平的加标回收试验,加标回收率为82.6%~ 112.1%,相对标准偏差为2.2%~7.2%.
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