PMID- 30877923 OWN - NLM STAT- MEDLINE DCOM- 20190710 LR - 20191210 IS - 1879-1298 (Electronic) IS - 0045-6535 (Linking) VI - 225 DP - 2019 Jun TI - Evaluation of gas chromatography-atmospheric pressure chemical ionization tandem mass spectrometry as an alternative to gas chromatography tandem mass spectrometry for the determination of polychlorinated biphenyls and polybrominated diphenyl ethers. PG - 288-294 LID - S0045-6535(19)30443-6 [pii] LID - 10.1016/j.chemosphere.2019.03.011 [doi] AB - A method for the analysis of polychlorinated biphenyls (PCBs) and polybrominated diphenyl ethers (PBDEs) in serum was developed using gas chromatography coupled to tandem mass spectrometry with atmospheric pressure chemical ionization (GC-APCI-MS/MS). The ionization and fragmentation performance of APCI were evaluated and compared with those of electron ionization (EI). In contrast to extensive fragmentation caused by EI with high energy, soft ionization achieved by APCI produced mass spectra dominated by molecular ions from the first stage of MS analysis. Better sensitivity and selectivity achieved by the GC-APCI-MS/MS method allowed to analyze serum samples with a low volume (100 muL). The limits of detection (LODs) ranged from 0.067 to 14 pg/mL for the analysis in serum samples. The developed method was evaluated at three spiking levels (0.05, 0.5 and 5 ng/mL for PCBs), showing good recoveries and repeatability. The recoveries ranged from 74.0% to 130.5%, and the relative standard deviations (RSDs) were less than 20%, for all analytes. The determination of PCBs and PBDEs in the human serum samples by GC-APCI-MS/MS was compared with gas chromatography-tandem mass spectrometry with EI (GC-EI-MS/MS). BDE-99 and BDE-100 were successfully quantified by GC-APCI-MS/MS, while these two PBDE congeners were not detected by GC-EI-MS/MS. The GC-APCI-MS/MS method had a clear advantage when analyzing compounds at low levels. CI - Copyright (c) 2019 Elsevier Ltd. All rights reserved. FAU - Fang, Jing AU - Fang J AD - State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong SAR, China. FAU - Zhao, Hongzhi AU - Zhao H AD - State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong SAR, China. FAU - Zhang, Yanhao AU - Zhang Y AD - State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong SAR, China. FAU - Wong, Minghung AU - Wong M AD - Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, China; Consortium on Health, Environment, Education and Research (CHEER), The Education University of Hong Kong, Hong Kong SAR, China. FAU - He, Yu AU - He Y AD - State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong SAR, China; MOE Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, 350116, China. FAU - Sun, Qianqian AU - Sun Q AD - MOE Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, 350116, China. FAU - Xu, Shunqing AU - Xu S AD - Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China. Electronic address: xust@hust.edu.cn. FAU - Cai, Zongwei AU - Cai Z AD - State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong SAR, China. Electronic address: zwcai@hkbu.edu.hk. LA - eng PT - Evaluation Study PT - Journal Article DEP - 20190308 PL - England TA - Chemosphere JT - Chemosphere JID - 0320657 RN - 0 (Halogenated Diphenyl Ethers) RN - DFC2HB4I0K (Polychlorinated Biphenyls) SB - IM MH - Atmospheric Pressure MH - Gas Chromatography-Mass Spectrometry/*methods MH - Halogenated Diphenyl Ethers/*blood MH - Humans MH - Limit of Detection MH - Polychlorinated Biphenyls/*blood MH - Tandem Mass Spectrometry/*methods OTO - NOTNLM OT - APCI OT - Human serum OT - PBDEs OT - PCBs EDAT- 2019/03/17 06:00 MHDA- 2019/07/11 06:00 CRDT- 2019/03/17 06:00 PHST- 2018/07/16 00:00 [received] PHST- 2019/02/18 00:00 [revised] PHST- 2019/03/03 00:00 [accepted] PHST- 2019/03/17 06:00 [pubmed] PHST- 2019/07/11 06:00 [medline] PHST- 2019/03/17 06:00 [entrez] AID - S0045-6535(19)30443-6 [pii] AID - 10.1016/j.chemosphere.2019.03.011 [doi] PST - ppublish SO - Chemosphere. 2019 Jun;225:288-294. doi: 10.1016/j.chemosphere.2019.03.011. Epub 2019 Mar 8.