Facile synthesis of magnetic covalent organic framework nanocomposites for the enrichment and quantification of trace organophosphorus pesticides in fruit juice  

在线阅读下载全文

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 

分 类 号:O62[理学—有机化学]

 

参考文献:

正在载入数据...

 

二级参考文献:

正在载入数据...

 

耦合文献:

正在载入数据...

 

引证文献:

正在载入数据...

 

二级引证文献:

正在载入数据...

 

同被引文献:

正在载入数据...

 

相关期刊文献:

正在载入数据...

相关的主题
相关的作者对象
相关的机构对象