PMID- 28281659 OWN - NLM STAT- MEDLINE DCOM- 20181106 LR - 20181113 IS - 2045-2322 (Electronic) IS - 2045-2322 (Linking) VI - 7 DP - 2017 Mar 10 TI - Atmospheric Pressure Chemical Ionization Gas Chromatography Mass Spectrometry for the Analysis of Selected Emerging Brominated Flame Retardants in Foods. PG - 43998 LID - 10.1038/srep43998 [doi] LID - 43998 AB - Emerging brominated flame retardants (eBFRs) other than polybrominated diphenyl ethers (PBDEs), polybrominated biphenyls (PBBs) and their derivatives in foods have been in focus in recent years due to their increasing production volumes, indefinite information on toxicities and the lack of data on occurrence in environments, foods as well as humans. In this study, gas chromatography was coupled to an atmospheric pressure chemical ionization-tandem mass spectrometry (APGC-MS/MS) for the analysis of six eBFRs in pork, chicken, egg, milk and fish. A short section of unpacked capillary column coupled to the end of the analytical column was applied to improve the chromatographic behaviors of high boiling point compounds. The method was comprehensively validated with method limit of quantification (mLOQ) lower than 8 pg/g wet weight (w.w.). Samples from Chinese Total Diet study were quantified following the validated APGC-MS/MS method. 2,3,4,5-pentabromo-6-ethylbenzene (PBEB), hexabromobenzene (HBB), pentabromotoluene (PBT) and 1,2-bis(2,4,6-tribromophenoxy)ethane (BTBPE) were most frequently detected in samples. The highest concentration was found in fish with 351.9 pg/g w.w. of PBT. This is the first report on the presence of PBT in food samples with non-ignorable concentrations and detection rate. FAU - Lv, Surong AU - Lv S AD - Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing 100193, China. AD - College of Science, Beijing University of Chemical Technology, Beijing, 100029, China. FAU - Niu, Yumin AU - Niu Y AD - Beijing Key Laboratory of Diagnostic and Traceability Technologies for Food Poisoning, Beijing Center for Disease Prevention and Control, 100013, China. FAU - Zhang, Jing AU - Zhang J AD - Beijing Key Laboratory of Diagnostic and Traceability Technologies for Food Poisoning, Beijing Center for Disease Prevention and Control, 100013, China. FAU - Shao, Bing AU - Shao B AD - Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing 100193, China. FAU - Du, Zhenxia AU - Du Z AD - College of Science, Beijing University of Chemical Technology, Beijing, 100029, China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20170310 PL - England TA - Sci Rep JT - Scientific reports JID - 101563288 RN - 0 (Flame Retardants) SB - IM MH - Animals MH - Eggs/analysis MH - Flame Retardants/*analysis MH - Food Analysis/*methods MH - Food Contamination/*analysis MH - Gas Chromatography-Mass Spectrometry/*methods MH - Meat/analysis MH - Milk/chemistry PMC - PMC5345032 COIS- The authors declare no competing financial interests. EDAT- 2017/03/11 06:00 MHDA- 2018/11/07 06:00 PMCR- 2017/03/10 CRDT- 2017/03/11 06:00 PHST- 2016/06/23 00:00 [received] PHST- 2017/02/02 00:00 [accepted] PHST- 2017/03/11 06:00 [entrez] PHST- 2017/03/11 06:00 [pubmed] PHST- 2018/11/07 06:00 [medline] PHST- 2017/03/10 00:00 [pmc-release] AID - srep43998 [pii] AID - 10.1038/srep43998 [doi] PST - epublish SO - Sci Rep. 2017 Mar 10;7:43998. doi: 10.1038/srep43998.