PMID- 28213257 OWN - NLM STAT- MEDLINE DCOM- 20180918 LR - 20180918 IS - 1873-3573 (Electronic) IS - 0039-9140 (Linking) VI - 166 DP - 2017 May 1 TI - A zeolitic imidazolate framework based nanoporous carbon as a novel fiber coating for solid-phase microextraction of pyrethroid pesticides. PG - 46-53 LID - S0039-9140(17)30142-X [pii] LID - 10.1016/j.talanta.2017.01.042 [doi] AB - A high-surface-area nanoporous carbon (NPC) has been successfully synthesized by using the metal-organic framework ZIF-90 as both the template and precursor together with furfuryl alcohol as a secondary carbon source. The prepared ZIF-90 templated NPC (ZIF-90-NPC) was then coated onto a stainless steel wire by a simple physical adhesion approach to prepare solid-phase microextraction (SPME) fiber. By coupling the ZIF-90-NPC coated fiber-based SPME with gas chromatography-microelectron capture detection (GC-muECD), the developed method gave a large enhancement factor (984-2869), low limit of detection (0.1-0.5ngg(-1)) and good linearity (0.3-50ngg(-1)) for the determination of some pyrethroid pesticides (bifenthrin, fenpropathrin, cyhalothrin, permethrin, cyfluthrin, flucythrinate, fenvalerate and deltamethrin) from different fruits and vegetables. The relative standard deviations (RSDs) for six replicate extractions of the pyrethroids by the ZIF-90-NPC coated fiber ranged from 4.3% to 8.0%. The recoveries of the spiked pyrethroids (5ngg(-1) and 20ngg(-1)) from fruit and vegetable samples were in the range of 88.0-104.0% and 86.0-103.5% with the RSDs ranging from 4.8% to 12.9% and 5.0-10.8%, respectively. Besides, the ZIF-90-NPC coated fiber was stable enough for 100 extraction cycles without a significant loss of extraction efficiency. The method was successfully applied to the determination of the pyrethroids in fruit and vegetable samples. CI - Copyright A(c) 2017 Elsevier B.V. All rights reserved. FAU - Zhang, Shuaihua AU - Zhang S AD - Department of Chemistry, College of Science, Hebei Agricultural University, Baoding 071001, China. FAU - Yang, Qian AU - Yang Q AD - College of Science and Technology, Hebei Agricultural University, Cangzhou 061100, China. FAU - Yang, Xiumin AU - Yang X AD - Department of Chemistry, College of Science, Hebei Agricultural University, Baoding 071001, China. FAU - Wang, Wenchang AU - Wang W AD - Department of Chemistry, College of Science, Hebei Agricultural University, Baoding 071001, China. FAU - Li, Zhi AU - Li Z AD - Department of Chemistry, College of Science, Hebei Agricultural University, Baoding 071001, China. FAU - Zhang, Lihong AU - Zhang L 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: zhiwang2013@aliyun.com. LA - eng PT - Journal Article DEP - 20170114 PL - Netherlands TA - Talanta JT - Talanta JID - 2984816R RN - 0 (Imidazoles) RN - 0 (Pesticides) RN - 0 (Pyrethrins) RN - 0 (Silicones) RN - 1318-02-1 (Zeolites) RN - 7440-44-0 (Carbon) SB - IM MH - Carbon/*chemistry MH - Food Contamination/analysis MH - Imidazoles/*chemistry MH - Models, Molecular MH - Molecular Conformation MH - Nanostructures/*chemistry MH - Pesticides/chemistry/*isolation & purification MH - Porosity MH - Pyrethrins/chemistry/*isolation & purification MH - Silicones/chemistry MH - Solid Phase Microextraction/*methods MH - Vegetables/chemistry MH - Zeolites/*chemistry OTO - NOTNLM OT - Fruit and vegetable samples OT - Nanoporous carbon OT - Pyrethroid pesticides OT - Solid-phase microextraction OT - Zeolitic imidazolate framework-90 EDAT- 2017/02/19 06:00 MHDA- 2018/09/19 06:00 CRDT- 2017/02/19 06:00 PHST- 2016/09/07 00:00 [received] PHST- 2017/01/10 00:00 [revised] PHST- 2017/01/13 00:00 [accepted] PHST- 2017/02/19 06:00 [entrez] PHST- 2017/02/19 06:00 [pubmed] PHST- 2018/09/19 06:00 [medline] AID - S0039-9140(17)30142-X [pii] AID - 10.1016/j.talanta.2017.01.042 [doi] PST - ppublish SO - Talanta. 2017 May 1;166:46-53. doi: 10.1016/j.talanta.2017.01.042. Epub 2017 Jan 14.