PMID- 30251496 OWN - NLM STAT- MEDLINE DCOM- 20181018 LR - 20181018 IS - 1872-2059 (Electronic) IS - 1000-8713 (Linking) VI - 36 IP - 8 DP - 2018 Aug 8 TI - [Determination of migration of perfluorooctanoic acid and perfluorooctane sulfonic acid from food contact materials by ionic liquid-based dispersive liquid-liquid microextraction and ultra-performance liquid chromatography-tandem mass spectrometry]. PG - 738-744 LID - 10.3724/SP.J.1123.2018.03039 [doi] AB - A new method was developed to determine the migration of perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS) from food contact materials (FCMs) using ionic liquid-based dispersive liquid-liquid microextraction (IL-DLLME) coupled with ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). FCM samples were soaked in three food simulants of water, 10% (v/v) aqueous ethanol solution, and 4% (v/v) acetic acid solution for the migration test, and then the migration liquid was extracted and enriched using the IL-DLLME. The key parameters in terms of the type and volume of extractant, vortex time, NaCl concentration, and the speed and time of centrifugation were investigated. The analytes were separated on a Waters ACQUITY UPLC BEH Shield RP18 column (50 mmx2.1 mm, 1.7 mum), eluted by gradient with acetonitrile and water, and quantified by electrospray ionization mass spectrometry in negative mode using multiple reaction monitoring (MRM). The experimental results showed good linearities (r(2)>0.99) in their concentration ranges. The limits of detection (LODs) were 0.5 and 1 mug/L, and the limits of quantitation (LOQs) were 2 and 5 mug/L for PFOA and PFOS, respectively. The recoveries of PFOA and PFOS ranged from 86.4% to 116.9% at three spiked levels with the relative standard deviations (RSDs) between 4.3% and 14.4% (n=6). The proposed method was demonstrated as accurate, efficient, eco-friendly, and suitable for the determination of the migration of PFOA and PFOS from FCMs. FAU - Yan, Mengmeng AU - Yan M AD - Chinese Academy of Inspection and Quarantine, Beijing 100176, China. AD - School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, China. FAU - Chen, Meng AU - Chen M AD - Chinese Academy of Inspection and Quarantine, Beijing 100176, China. AD - School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, China. FAU - Meng, Xianshuang AU - Meng X AD - Chinese Academy of Inspection and Quarantine, Beijing 100176, China. FAU - Guo, Xiangyu AU - Guo X AD - Chinese Academy of Inspection and Quarantine, Beijing 100176, China. FAU - Bai, Hua AU - Bai H AD - Chinese Academy of Inspection and Quarantine, Beijing 100176, China. FAU - Ma, Qiang AU - Ma Q AD - Chinese Academy of Inspection and Quarantine, Beijing 100176, China. FAU - Wang, Penglong AU - Wang P AD - School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, China. FAU - Lei, Haimin AU - Lei H AD - School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, China. LA - chi PT - Journal Article PL - China TA - Se Pu JT - Se pu = Chinese journal of chromatography JID - 9424804 RN - 0 (Alkanesulfonic Acids) RN - 0 (Caprylates) RN - 0 (Fluorocarbons) RN - 0 (Ionic Liquids) RN - 0 (Ions) RN - 947VD76D3L (perfluorooctanoic acid) RN - 9H2MAI21CL (perfluorooctane sulfonic acid) SB - IM MH - Alkanesulfonic Acids/*analysis MH - Caprylates/*analysis MH - Chromatography, High Pressure Liquid MH - Fluorocarbons/*analysis MH - Food Contamination/*analysis MH - *Food Packaging MH - Ionic Liquids MH - Ions MH - Limit of Detection MH - Liquid Phase Microextraction MH - Spectrometry, Mass, Electrospray Ionization MH - Tandem Mass Spectrometry OTO - NOTNLM OT - dispersive liquid-liquid microextraction (DLLME) OT - food contact materials (FCMs) OT - food simulants OT - ionic liquid (IL) OT - perfluorooctane sulfonic acid (PFOS) OT - perfluorooctanoic acid (PFOA) OT - ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) EDAT- 2018/09/27 06:00 MHDA- 2018/10/20 06:00 CRDT- 2018/09/26 06:00 PHST- 2018/09/26 06:00 [entrez] PHST- 2018/09/27 06:00 [pubmed] PHST- 2018/10/20 06:00 [medline] AID - 10.3724/SP.J.1123.2018.03039 [doi] PST - ppublish SO - Se Pu. 2018 Aug 8;36(8):738-744. doi: 10.3724/SP.J.1123.2018.03039.