PMID- 31461866 OWN - NLM STAT- MEDLINE DCOM- 20201020 LR - 20201020 IS - 2072-6651 (Electronic) IS - 2072-6651 (Linking) VI - 11 IP - 9 DP - 2019 Aug 27 TI - A Novel Magnetic Molecular Imprinted Polymer for Selective Extraction of Zearalenone from Cereal Flours before Liquid Chromatography-Tandem Mass Spectrometry Determination. LID - 10.3390/toxins11090493 [doi] LID - 493 AB - Zearalenone (ZEN) is a nonsteroidal estrogenic mycotoxin produced by various Fusarium species and commonly occurring in corn and other cereals. Even though its acute toxicity is low, still the estrogenic activity of ZEN and metabolites is a matter of concern. In this work, a new magnetic molecularly imprinted polymer (mMIP) for the selective extraction of ZEN from cereal flours is presented. The mMIP was synthesized previously using quercetin as dummy template, and here we wanted to test its applicability to complex food samples. Analyte determination was carried out by high-performance liquid chromatography coupled to tandem mass spectrometry. The selectivity of the mMIP and the main validation method parameters were assessed. In particular, even in samples as complex as cereals, matrix effect was negligible. Although the mMIP showed cross-selectivity towards both ZEN-related and quercetin-related compounds, nonetheless ZEN recovery was > 95% for the two lower spiking levels, and the quantification limit was 0.14 ng g(-1), i.e., ca. 500 times lower than the maximum limit fixed for most cereals by European law. Therefore, the material, also in comparison with a commercial sorbent, appears suitable for the application in food analysis, also to isolate ZEN at trace levels. FAU - Cavaliere, Chiara AU - Cavaliere C AUID- ORCID: 0000-0003-1332-682X AD - Department of Chemistry, Universita di Roma "La Sapienza", 00185 Rome, Italy. FAU - Antonelli, Michela AU - Antonelli M AD - Department of Chemistry, Universita di Roma "La Sapienza", 00185 Rome, Italy. FAU - Cerrato, Andrea AU - Cerrato A AD - Department of Chemistry, Universita di Roma "La Sapienza", 00185 Rome, Italy. FAU - La Barbera, Giorgia AU - La Barbera G AD - Department of Chemistry, Universita di Roma "La Sapienza", 00185 Rome, Italy. giorgia.labarbera@uniroma1.it. FAU - Lagana, Aldo AU - Lagana A AUID- ORCID: 0000-0003-4963-3020 AD - Department of Chemistry, Universita di Roma "La Sapienza", 00185 Rome, Italy. aldo.lagana@uniroma1.it. AD - CNR, NANOTEC - Campus Ecotekne, Universita del Salento, 73100 Lecce, Italy. aldo.lagana@uniroma1.it. FAU - Laus, Michele AU - Laus M AD - Department of Science and Technological Innovation, Universita del Piemonte Orientale "A. Avogadro", 15121 Alessandria, Italy. FAU - Piovesana, Susy AU - Piovesana S AD - Department of Chemistry, Universita di Roma "La Sapienza", 00185 Rome, Italy. FAU - Capriotti, Anna Laura AU - Capriotti AL AD - Department of Chemistry, Universita di Roma "La Sapienza", 00185 Rome, Italy. LA - eng PT - Journal Article DEP - 20190827 PL - Switzerland TA - Toxins (Basel) JT - Toxins JID - 101530765 RN - 0 (Magnetite Nanoparticles) RN - 0 (Methacrylates) RN - 0 (Polymers) RN - 0 (Pyridines) RN - 5W827M159J (Zearalenone) RN - 7BK5G69305 (ethylene dimethacrylate) RN - 9IKM0I5T1E (Quercetin) RN - I56G67XM8D (4-vinylpyridine) SB - IM MH - Chromatography, Liquid MH - Edible Grain/*chemistry MH - Flour/analysis MH - Food Analysis/instrumentation/*methods MH - Food Contamination/*analysis MH - Limit of Detection MH - Magnetic Phenomena MH - Magnetite Nanoparticles/chemistry MH - Methacrylates/chemistry MH - Molecular Imprinting/*methods MH - Polymers/*chemistry MH - Pyridines/chemistry MH - Quercetin/chemistry MH - Solid Phase Extraction MH - Tandem Mass Spectrometry MH - Zearalenone/*analysis PMC - PMC6784151 OTO - NOTNLM OT - dispersive solid-phase extraction OT - dummy template OT - liquid chromatography-tandem mass spectrometry OT - magnetic molecularly imprinted polymers OT - sample preparation OT - zearalenone COIS- The authors declare no conflict of interest. EDAT- 2019/08/30 06:00 MHDA- 2020/10/21 06:00 PMCR- 2019/09/01 CRDT- 2019/08/30 06:00 PHST- 2019/08/01 00:00 [received] PHST- 2019/08/22 00:00 [revised] PHST- 2019/08/23 00:00 [accepted] PHST- 2019/08/30 06:00 [entrez] PHST- 2019/08/30 06:00 [pubmed] PHST- 2020/10/21 06:00 [medline] PHST- 2019/09/01 00:00 [pmc-release] AID - toxins11090493 [pii] AID - toxins-11-00493 [pii] AID - 10.3390/toxins11090493 [doi] PST - epublish SO - Toxins (Basel). 2019 Aug 27;11(9):493. doi: 10.3390/toxins11090493.