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Reference type: Journal
Authors: Rico-Yuste A, Walravens J, Urraca JL, Abou-Hany RAG, Descalzo AB, Orellana G, Rychlik M, De Saeger S, Moreno-Bondi MC
Article Title: Analysis of alternariol and alternariol monomethyl ether in foodstuffs by molecularly imprinted solid-phase extraction and ultra-high-performance liquid chromatography tandem mass spectrometry.
Publication date: 2018
Journal: Food Chemistry
Volume: 243
Page numbers: 357-364.
DOI: 10.1016/j.foodchem.2017.09.125
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0308814617316011

Abstract: Molecularly imprinted porous polymer microspheres selective to Alternaria mycotoxins, alternariol (AOH) and alternariol monomethyl ether (AME), were synthesized and applied to the extraction of both mycotoxins in food samples. The polymer was prepared using 4-vinylpiridine (VIPY) and methacrylamide (MAM) as functional monomers, ethylene glycol dimethacrylate (EDMA) as cross-linker and 3,8,9-trihydroxy-6H-dibenzo[b,d]pyran-6-one (S2) as AOH surrogate template. A molecularly imprinted solid phase extraction (MISPE) method has been optimized for the selective isolation of the mycotoxins from aqueous samples coupled to HPLC with fluorescence (λex = 258nm; λem = 440nm) or MS/MS analysis. The MISPE method was validated by UPLC-MS/MS for the determination of AOH and AME in tomato juice and sesame oil based on the European Commission Decision 2002/657/EC. Method performance was satisfactory with recoveries from 92.5% to 106.2% and limits of quantification within the 1.1-2.8 μgkgG1 range in both samples
Template and target information: alternariol, AOH, alternariol monomethyl ether, AME
Author keywords: Alternariol, Alternariol monomethyl ether, Alternaria mycotoxins, Molecularly imprinted polymers, MISPE, UPLC-MS, MS

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