PMID- 29735280 OWN - NLM STAT- MEDLINE DCOM- 20180618 LR - 20181202 IS - 1873-3778 (Electronic) IS - 0021-9673 (Linking) VI - 1556 DP - 2018 Jun 29 TI - Hyper-crosslinked polymer nanoparticles as the solid-phase microextraction fiber coating for the extraction of organochlorines. PG - 47-54 LID - S0021-9673(18)30546-6 [pii] LID - 10.1016/j.chroma.2018.05.001 [doi] AB - A hyper-crosslinked polymer benzenedimethanol (HCP-BDM) was synthesized and explored as a solid-phase microextraction (SPME) fiber coating material. To prepare the HCP-BDM, 1,4-benzenedimethanol monomer was self-condensed via a simple Friedel-Crafts alkylation reaction. The physical-chemical properties of the HCP-BDM material were characterized by infrared spectroscopy, scanning electron microscopy, thermogravimetric and analysis nitrogen adsorption-desorption isotherms. The HCP-BDM coated fiber demonstrated excellent adsorption performance for some organochlorine pesticides (OCPs). An effective HCP-BDM fiber-based SPME method combined with gas chromatography-micro electron capture detector was established for the analysis of the OCPs from various vegetable samples. The linear ranges were observed from their corresponding limits of quantification (LOQs) to 50 ng g(-1) for the OCPs, with correlation coefficients varied from 0.9952 to 0.9992. Their limits of detection at S/N = 3 ranged from 0.058 to 0.14 ng g(-1). The single fiber repeatability and fiber-to-fiber reproducibility, expressed as the relative standard deviations (RSDs), were from 3.4% to 8.8% and from 6.7% to 9.6%, respectively. The established method was finally applied to the analysis of the OCPs from cucumber, Chinese cabbage and tomato samples with satisfactory recoveries and repeatability. CI - Copyright (c) 2018 Elsevier B.V. All rights reserved. FAU - Wang, Wenchang AU - Wang W AD - Department of Chemistry, College of Science, Hebei Agricultural University, Baoding 071001, China. FAU - Wang, Wenjin AU - Wang W AD - Department of Chemistry, College of Science, Hebei Agricultural University, Baoding 071001, China. FAU - Zhang, Shuaihua AU - Zhang S AD - Department of Chemistry, College of Science, Hebei Agricultural University, Baoding 071001, China. Electronic address: zhangshuaihua@hebau.edu.cn. FAU - Li, Zhi AU - Li Z AD - Department of Chemistry, College of Science, Hebei Agricultural University, Baoding 071001, China. FAU - Wang, Chun AU - Wang C AD - Department of Chemistry, College of Science, Hebei Agricultural University, Baoding 071001, China. FAU - Wang, Zhi AU - Wang Z AD - Department of Chemistry, College of Science, Hebei Agricultural University, Baoding 071001, China. Electronic address: wangzhi@hebau.edu.cn. LA - eng PT - Journal Article DEP - 20180502 PL - Netherlands TA - J Chromatogr A JT - Journal of chromatography. A JID - 9318488 RN - 0 (Cross-Linking Reagents) RN - 0 (Hydrocarbons, Chlorinated) RN - 0 (Polymers) RN - 0 (Silicones) RN - 0 (Water Pollutants, Chemical) RN - N762921K75 (Nitrogen) SB - IM MH - Adsorption MH - Chromatography, Gas MH - Cross-Linking Reagents/*chemistry MH - Hydrocarbons, Chlorinated/*isolation & purification MH - Nanoparticles/*chemistry MH - Nitrogen/chemistry MH - Osmolar Concentration MH - Polymers/*chemistry MH - Reproducibility of Results MH - Silicones/chemistry MH - Solid Phase Microextraction/*methods MH - Spectroscopy, Fourier Transform Infrared MH - Temperature MH - Time Factors MH - Vegetables/chemistry MH - Water Pollutants, Chemical/isolation & purification OTO - NOTNLM OT - Hyper-crosslinked polymer OT - Organochlorine pesticides OT - Solid-phase microextraction OT - Vegetable samples EDAT- 2018/05/08 06:00 MHDA- 2018/06/19 06:00 CRDT- 2018/05/09 06:00 PHST- 2018/03/24 00:00 [received] PHST- 2018/04/26 00:00 [revised] PHST- 2018/05/01 00:00 [accepted] PHST- 2018/05/08 06:00 [pubmed] PHST- 2018/06/19 06:00 [medline] PHST- 2018/05/09 06:00 [entrez] AID - S0021-9673(18)30546-6 [pii] AID - 10.1016/j.chroma.2018.05.001 [doi] PST - ppublish SO - J Chromatogr A. 2018 Jun 29;1556:47-54. doi: 10.1016/j.chroma.2018.05.001. Epub 2018 May 2.