Abstract: A method was established for the determination of 7 perfluorinated compounds(PFCS) in four kinds of food wrapping materials(popcorn bucket,barbecue oiled papers,hamburger bags and egg tart tinfoil) by solid phase extraction coupled with liquid chromatography-tandem mass spectrometry(SPE-LC-MS /MS).The results showed that four kinds of PFCs including Perfluorohexanoic acid(PFHxA),perfluoroheptanoic acid(PFHpA),perfluorooctanoate acid(PFOA) and perfluorononanoic acid(PFNA) were detected in popcorn bucket and their average concentrations were 15.8114,0.4690,0.2225 and 0.0363 μg /kg,respectively;PFHxA was detected in barbecue oiled papers,and the average concentrations was 1.3344 μg /kg;PFHxA and PFHpA were detected in hamburger bags,and their average concentrations were 0.1639 and 0.4599 μg /kg;there was a different pollution degree between 3batches of egg tart tinfoil.PFHxA was detected in both batch 1 and 2,the average concentrations were 1.461 and0.1770 μg /kg,respectively;however six kinds were detected in bach 3 including perfluorochemicals including perfluorohexanoic acid,perfluoroheptanoic acid,perfluorooctanoate acid,perfluorododecanoic acid(PFDoA),perfluorotetradecanoic acid(PFTA) and perfluorooctane sulphonate(PFOS),and the average concentrations were 1.68,3.15,0.68,0.74,0.64 and 0.07 μg /kg,respectively.The limits of detection for the method(LODS),average recoveries and RSD for repeated measurements(n = 6) were 0.03 ~ 0.52 μg /kg,88% ~ 110% and 1.7% ~ 5.0%,respectively.The method was simple,accurate and sensitive.It was suitable for the determination and confirmation of PFCs in different kinds of food wrapping materials.
徐睿,谭红,杨鸿波,等. SPE-LC-MS/MS测定4种食品接触材料中7种全氟有机物[J]. 食品与发酵工业, 2014, 40(10): 205-209.
XU Rui,TAN Hong,YANG Hong-bo,et al. Determination of seven perfluorinated compounds in four kinds of food wrapping materials by solid phase extraction couple with liquid chromatography-tandem mass spectrometry[J]. Food and Fermentation Industries, 2014, 40(10): 205-209.