PMID- 33598812 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20210809 LR - 20210809 IS - 1436-5073 (Electronic) IS - 0026-3672 (Linking) VI - 188 IP - 3 DP - 2021 Feb 18 TI - Facile fabrication of magnetic covalent organic frameworks and their application in selective enrichment of polychlorinated naphthalenes from fine particulate matter. PG - 91 LID - 10.1007/s00604-021-04750-z [doi] AB - Magnetic covalent organic frameworks (Fe(3)O(4)@TPPCl(4)) were synthesized via a one-pot process in which magnetic nanoparticles (Fe(3)O(4)@MNP) served as a magnetic core and 2,4,6-trihydroxy-1,3,5-benzenetricarbaldehyde (TP) and 2,2',5,5'-tetrachlorobenzidine (PCl(4)) as two building blocks to form a shell. The as-prepared Fe(3)O(4)@TPPCl(4) nanoparticles have superior features, including large surface area (186.5 m(2) g(-1)), high porosity, strong magnetic responsiveness (42.6 emu g(-1)), high chlorine content, and outstanding thermal stability, which make them an ideal adsorbent for highly selective enrichment of polychlorinated naphthalenes (PCNs). Combining with atmospheric pressure gas chromatography tandem mass spectrometry (APGC-MS/MS), a simple analytical method of Fe(3)O(4)@TPPCl(4)-based magnetic solid-phase extraction (MSPE)-APGC-MS/MS was developed, which exhibited good linearity (r >/= 0.9991) for eight PCNs in the concentration range 0.1-100 ng L(-1). Moreover, low detection limits (0.005-0.325 ng L(-1)), high enrichment factors (46.62-81.97-fold), and good relative standard deviations (RSDs) of inter-day (n = 3, 1.64 to 7.44%) and day-to-day (n = 3, 2.62 to 8.23%) were achieved. This method was successfully applied to the selective enrichment of PCNs in fine particulate matter (PM)(2.5) samples, and ultra-trace PCNs were found in the range 1.56-3.75 ng kg(-1) with satisfactory recoveries (93.11-105.81%). The successful application demonstrated the great potential of Fe(3)O(4)@TPPCl(4) nanoparticles as an adsorbent for enrichment of halogenated compounds. Schematic presented one-pot synthesis of magnetic covalent organic framework nanocomposites (Fe(3)O(4)@TPPCl(4)) and their application in the selective enrichment of PCNs from PM(2.5) prior to APGC-MS/MS analysis. FAU - Guo, Wenjing AU - Guo W AD - Ministry of Education Key Laboratory of Analytical Science for Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, 350116, Fujian, China. FAU - Wang, Wenli AU - Wang W AD - Ministry of Education Key Laboratory of Analytical Science for Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, 350116, Fujian, China. FAU - Yang, Yixin AU - Yang Y AD - Ministry of Education Key Laboratory of Analytical Science for Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, 350116, Fujian, China. FAU - Zhang, Shasha AU - Zhang S AD - Ministry of Education Key Laboratory of Analytical Science for Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, 350116, Fujian, China. FAU - Yang, Baichuan AU - Yang B AD - Ministry of Education Key Laboratory of Analytical Science for Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, 350116, Fujian, China. FAU - Ma, Wende AU - Ma W AD - Ministry of Education Key Laboratory of Analytical Science for Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, 350116, Fujian, China. FAU - He, Yu AU - He Y AD - Ministry of Education Key Laboratory of Analytical Science for Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, 350116, Fujian, China. FAU - Lin, Zian AU - Lin Z AUID- ORCID: 0000-0002-0866-0711 AD - Ministry of Education Key Laboratory of Analytical Science for Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, 350116, Fujian, China. zianlin@fzu.edu.cn. FAU - Cai, Zongwei AU - Cai Z AUID- ORCID: 0000-0002-8724-7684 AD - Ministry of Education Key Laboratory of Analytical Science for Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, 350116, Fujian, China. zwcai@hkbu.edu.hk. AD - State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, 224 Waterloo Road, Kowloon Tong, 999077, Hong Kong, SAR, People's Republic of China. zwcai@hkbu.edu.hk. LA - eng GR - 91843301/National Natural Science Foundation of China/ GR - 21974021, and 21705025/National Natural Science Foundation of China/ PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20210218 PL - Austria TA - Mikrochim Acta JT - Mikrochimica acta JID - 7808782 SB - IM OTO - NOTNLM OT - APGC-MS/MS OT - Adsorbent OT - Fe3O4@TPPCl4 nanoparticles OT - Halogenated compound enrichment OT - Magnetic covalent organic frameworks OT - Magnetic solid-phase extraction OT - PM2.5 samples OT - Polychlorinated naphthalenes EDAT- 2021/02/19 06:00 MHDA- 2021/02/19 06:01 CRDT- 2021/02/18 06:14 PHST- 2020/11/09 00:00 [received] PHST- 2021/02/08 00:00 [accepted] PHST- 2021/02/18 06:14 [entrez] PHST- 2021/02/19 06:00 [pubmed] PHST- 2021/02/19 06:01 [medline] AID - 10.1007/s00604-021-04750-z [pii] AID - 10.1007/s00604-021-04750-z [doi] PST - epublish SO - Mikrochim Acta. 2021 Feb 18;188(3):91. doi: 10.1007/s00604-021-04750-z.