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Sustainable magnetic porous organic frameworks for rapid pre-concentration of benzoylurea pesticides in tea.

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Τίτλος: Sustainable magnetic porous organic frameworks for rapid pre-concentration of benzoylurea pesticides in tea.
Συγγραφείς: Saenkam D; Multidisciplinary Research Unit of Pure and Applied Chemistry (MRUPAC), Department of Chemistry and Center of Excellent for Innovation in Chemistry, Faculty of Science, Mahasarakham University, Maha Sarakham, 44150, Thailand., Santaladchaiyakit Y; Department of Chemistry, Faculty of Engineering, Rajamangala University of Technology Isan, Khon Kaen Campus, Khon Kaen, 40000, Thailand., Vichapong J; Multidisciplinary Research Unit of Pure and Applied Chemistry (MRUPAC), Department of Chemistry and Center of Excellent for Innovation in Chemistry, Faculty of Science, Mahasarakham University, Maha Sarakham, 44150, Thailand. Electronic address: jitlada.v@msu.ac.th.
Πηγή: Journal of chromatography. A [J Chromatogr A] 2026 Sep 27; Vol. 1785, pp. 467255. Date of Electronic Publication: 2026 Jul 09.
Τύπος έκδοσης: Journal Article
Γλώσσα: English
Στοιχεία περιοδικού: Publisher: Elsevier Country of Publication: Netherlands NLM ID: 9318488 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1873-3778 (Electronic) Linking ISSN: 00219673 NLM ISO Abbreviation: J Chromatogr A Subsets: MEDLINE
Imprint Name(s): Original Publication: Amsterdam ; New York : Elsevier, 1993-
Ιατρικοί όροι (MeSH): Tea*/chemistry , Solid Phase Extraction*/methods , Magnetite Nanoparticles*/chemistry , Phenylurea Compounds*/isolation & purification , Phenylurea Compounds*/analysis , Phenylurea Compounds*/chemistry , Pesticide Residues*/isolation & purification , Pesticide Residues*/analysis , Pesticide Residues*/chemistry , Pesticides*/isolation & purification , Pesticides*/analysis, Magnetic Iron Oxide Nanoparticles/chemistry ; Adsorption ; Porosity ; Chromatography, High Pressure Liquid ; Reproducibility of Results ; Limit of Detection ; Green Chemistry Technology ; Linear Models
Περίληψη: A magnetic porous organic framework (Fe3O4@POF) was synthesized and utilized as an efficient sorbent for the magnetic solid-phase extraction (MSPE) of benzoylurea insecticides from tea samples, followed by high-performance liquid chromatography coupled with ultraviolet detection. In this work, magnetic iron oxide (Fe3O4) nanoparticles were heterogeneously decorated around a porous organic framework (POF) template, creating a magnetic adsorbent that functions as a molecular sponge for the selective capture of benzoylurea insecticides. The physicochemical properties of the prepared sorbent were characterized. The synthesis parameters of the sorbent and the extraction conditions were systematically investigated and optimized to enhance extraction performance. Under the optimized conditions, the proposed method exhibited good linearity, low limits of detection, satisfactory enrichment factors, and good precision (RSD < 4.69%). The method was successfully applied to real samples, with recoveries in the range of 70.3-117.8%, while no residues of the investigated benzoylurea insecticides were detected. Furthermore, a rigorous greenness and whiteness assessment using AGREE, AGREEprep, and BAGI metrics confirmed the method's robust compliance with green analytical chemistry (GAC) principles. With its rapid processing time and exceptional sorbent reusability, this Fe3O4@POF-based strategy offers a superior, eco-friendly alternative for routine food safety monitoring and the detection of trace insecticides.
(Copyright © 2026 Elsevier B.V. All rights reserved.)
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
Contributed Indexing: Keywords: Benzoylurea insecticides; Core-shell nanostructures; Magnetic porous organic framework (Fe(3)O(4)@POF); Magnetic solid-phase extraction (MSPE); Tea matrix analysis
Substance Nomenclature: 0 (Tea)
0 (Magnetite Nanoparticles)
0 (Phenylurea Compounds)
0 (Pesticide Residues)
0 (Pesticides)
Entry Date(s): Date Created: 20260714 Date Completed: 20260812 Latest Revision: 20260812
Update Code: 20260813
DOI: 10.1016/j.chroma.2026.467255
PMID: 42447635
Βάση Δεδομένων: MEDLINE
Περιγραφή
ISSN:1873-3778
DOI:10.1016/j.chroma.2026.467255