Moreno-González, DavidHuertas-Pérez, José F.García-Campaña, Ana M.Gámiz-Gracia, Laura2025-01-212025-01-212014-1010.1016/j.talanta.2014.04.045https://hdl.handle.net/10953/4237In this study a fast, selective and sensitive multiresidue method based on QuEChERS methodology has been evaluated and validated for the determination of carbamate pesticides, in edible vegetable oils by UHPLC–MS/MS. A new clean-up sorbent, SupelTM QuE Z-Sep+, has been successfully applied in vegetable oil extracts. Z-Sep+ was compared with other sorbents (i.e. mixture of C18 and PSA) previously used for dispersive solid phase extraction of these matrices, reducing more effectively matrix effects without a significant decrease of analyte recoveries. Matrix effect was studied in different matrices (extra-virgin olive, sunflower, maize, linseed and sesame oil) being ≤│30│% for most of the studied pesticides. Under optimum conditions, recoveries ranged from 74% to 101%, with relative standard deviations lower than 10%. Limits of quantification ranged from 0.09 to 2.0 µg kg−1, allowing their determination at the low concentration levels demanding by current legislation.engCC0 1.0 Universalhttp://creativecommons.org/publicdomain/zero/1.0/CarbamatesUHPLC–MS/MSZ-Sep+Edible vegetable oilsinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccess