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Products: Almonds, Peanuts, Pistachios
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Use of a modified QuEChERS method for the determination of mycotoxin residues in edible nuts by nano flow liquid chromatography high resolution mass spectrometry.
Authors: Alcántara-Durán, J., Moreno-González, D., García-Reyes, J. F., & Molina-Díaz, A.
- Journals: Food Chem
- Pages: 144-149
- Volume: 279
- Year: 2019
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A nanoflow liquid chromatography high resolution mass spectrometry method for the quantification of mycotoxins in nuts has been developed. Two strategies based on QuEChERS methodology were evaluated. Thus, EMR-lipid was compared with a conventional mixture of PSA and C18 dispersive solid phase extraction sorbents which have been commonly used in this type of matrices as sample clean-up. The results showed that the use of EMR-lipid reduced more effectively matrix components, achieving a negligible matrix effect for all mycotoxins studied in peanut, pistachio and almond. The proposed method was validated in line with SANTE guidelines using EMR-Lipid as dispersive solid phase extraction sorbent. The lowest concentration level were between 0.05 and 5 μg kg-1, being lower than the maximum levels established by the current legislation. Recovery rates ranged from 75% to 98% was obtained in all sample studied, achieving also satisfactory precision with RSD values lower than 19% in all cases.