PMID- 29254577 OWN - NLM STAT- MEDLINE DCOM- 20180814 LR - 20191210 IS - 1873-4324 (Electronic) IS - 0003-2670 (Linking) VI - 999 DP - 2018 Jan 25 TI - An integrated method for simultaneously determining 10 classes of per- and polyfluoroalkyl substances in one drop of human serum. PG - 76-86 LID - S0003-2670(17)31248-5 [pii] LID - 10.1016/j.aca.2017.10.038 [doi] AB - Per- and polyfluoroalkyl substances (PFASs) represent a group of synthetic chemicals, and they have quite different physicochemical properties, which result in difficulties of their simultaneous determination in a single injection. A sensitive, reliable, and fully automated method was developed for simultaneously detecting 10 classes of PFASs (total of 43) in human serum using online Turboflow SPE-UHPLC-MS/MS. This method provided high linearity of matrix-matched calibration standards (R > 0.99), excellent method limits of detection (MLODs) (0.013-0.089 ng mL(-1)), satisfactory matrix spiked recoveries (84.3-109%) and relative standard deviations (RSDs) (intra-day RSDs: 1.3-12.6%, inter-day RSDs: 1.7-13.8%, inter-week RSDs: 1.8-13.5%, inter-month RSDs: 3.1-12.4%), short analysis time (19 min per sample) and small sample amount requirement (25 muL), which were suitable for large-scale epidemiologic studies. Moreover, the method provided the feasibility of real-time monitoring for the degradation kinetics of PFASs precursors both in vitro and in vivo. The quality of the present method was further verified by repetitive analysis of a standard reference material (SRM 1957), with the deviations of the targeted PFAS concentrations ranging from 1.9% to 14.2% (n = 5) between the detected and reference values. The present study also determined values for several PFASs in SRM 1957 other than those on the certificate, for the first time, such as N-EtFOSA, 6:2 Cl-PFESA, and PFBA. Finally, the established method was applied to detect PFASs in serum samples of 15 ordinary people and 15 occupational workers, and 6:2 FTSA was found as the dominant precursor. CI - Copyright (c) 2017 Elsevier B.V. All rights reserved. FAU - Gao, Ke AU - Gao K AD - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China. FAU - Fu, Jianjie AU - Fu J AD - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China. Electronic address: jjfu@rcees.ac.cn. FAU - Xue, Qiao AU - Xue Q AD - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China. FAU - Li, Yili AU - Li Y AD - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China. FAU - Liang, Yong AU - Liang Y AD - Institute of Environment and Health, Jianghan University, Wuhan 430056, China. FAU - Pan, Yuanyuan AU - Pan Y AD - Thermofisher Scientific Corporation, Beijing 100080, China. FAU - Zhang, Aiqian AU - Zhang A AD - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China. Electronic address: aqzhang@rcees.ac.cn. FAU - Jiang, Guibin AU - Jiang G AD - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China. LA - eng PT - Journal Article PT - Validation Study DEP - 20171109 PL - Netherlands TA - Anal Chim Acta JT - Analytica chimica acta JID - 0370534 RN - 0 (Environmental Pollutants) RN - 0 (Fluorocarbons) SB - IM MH - Chromatography, High Pressure Liquid/methods MH - Environmental Exposure/analysis MH - Environmental Pollutants/*blood MH - Fluorocarbons/*blood MH - Humans MH - Limit of Detection MH - Sample Size MH - Solid Phase Extraction/methods MH - Tandem Mass Spectrometry/*methods OTO - NOTNLM OT - Fluorinated precursors OT - Online turboflow SPE OT - Per-and poly-fluoroalkyl substances OT - Perfluoroalkyl phosphonates OT - Polyfluoroalkyl phosphate esters OT - SRM 1957 EDAT- 2017/12/20 06:00 MHDA- 2018/08/15 06:00 CRDT- 2017/12/20 06:00 PHST- 2017/07/27 00:00 [received] PHST- 2017/10/26 00:00 [revised] PHST- 2017/10/29 00:00 [accepted] PHST- 2017/12/20 06:00 [entrez] PHST- 2017/12/20 06:00 [pubmed] PHST- 2018/08/15 06:00 [medline] AID - S0003-2670(17)31248-5 [pii] AID - 10.1016/j.aca.2017.10.038 [doi] PST - ppublish SO - Anal Chim Acta. 2018 Jan 25;999:76-86. doi: 10.1016/j.aca.2017.10.038. Epub 2017 Nov 9.