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作 者:Quanbin Fu Xin Sun Lu Liu Hailong Jiang Geoffrey I.N.Waterhouse Shiyun Ai Rusong Zhao
机构地区:[1]College of Food Science and Engineering,Shandong Agricultural University,Tai’an 271018,China [2]Qilu University of Technology(Shandong Academy of Sciences),Shandong Analysis and Test Center,Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province,Jinan 250014,China [3]College of Chemistry and Material Science,Shandong Agricultural University,Tai’an 271018,China [4]School of Chemical Sciences,The University of Auckland,Auckland 1142,New Zealand
出 处:《Food Science and Human Wellness》2025年第3期1106-1114,共9页食品科学与人类健康(英文)
基 金:supported by Key Research and Development Project of Shandong Province(2021ZDSYS12);National Natural Science Foundation of China(22076086,21777089);Taishan Scholar Program of Shandong Province(ts20190948);Shandong Province Science and Technology Small and Medium Enterprises Innovation Ability Enhancement Project(2023TSGC0689,2023TSGC0055);Natural Science Foundation of Shandong Province(ZR2021MB086,ZR2023QB035);Jinan City University and Institute Innovation Team Project(2021GXRC061,20228045,202333027)。
摘 要:Organophosphorus pesticides(OPPs)in foods pose a serious threat to human health,motivating the development of novel analytical methods for their rapid detection and quantification.A magnetic covalent organic framework(M-COF)adsorbent for the magnetic solid-phase extraction(MSPE)of OPPs from foods was reported.M-COF was synthesized by the Schiff base condensation reaction of 1,3,5-tris(4-aminophenyl)benzene and 4,4-biphenyldicarboxaldehyde on the surface of amino-functionalized magnetic nanoparticles.Density functional theory(DFT)calculations showed that adsorption of OPPs onto the surface of M-COF involved hydrophobic effects,van der Waals interactions,π-πinteractions,halogen-N bonding,and hydrogen bonding.Combined with gas chromatography-mass spectrometry(GC-MS)technology,the MSPE method features low limits of detection for OPPs(0.002-0.015μg/L),good reproducibility(1.45%-6.14%),wide linear detection range(0.01-1μg/L,R≥0.9935),and satisfactory recoveries(87.3%-110.4%).The method was successfully applied for the trace analysis of OPPs in spiked fruit juices.
关 键 词:Covalent organic framework Gas chromatography-mass spectrometry Magnetic solid-phase extraction Organophosphorus pesticides Fruit juice
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