RT info:eu-repo/semantics/article T1 Determination of acaricides in honeys from different botanical origins by gas chromatography-mass spectrometry A1 Fuente Ballesteros, Adrián de la A1 Brugnerotto, Patricia A1 Costa, Ana C.O. A1 Nozal Nalda, María Jesús del A1 Ares Sacristán, Ana María A1 Bernal del Nozal, José K1 Acaricides; Food analysis; Food safety; Gas chromatography-mass spectrometry; Honey; Method validation AB An analytical method has been proposed and validated to determine seven acaricides (atrazine, chlorpyrifos, chlorfenvinphos, α-endosulfan, bromopropylate, coumaphos, and τ-fluvalinate) in honeys from different botanical origins (multifloral, heather and rosemary) by means of gas chromatography-mass spectrometry. An efficient and simple sample treatment was proposed that involved a solvent extraction with an ethyl acetate and cyclohexane (50:50, v/v) mixture. Chromatographic analysis (<25 min) was performed in a DB-5MS column under programmed temperature conditions. The method was validated in terms of selectivity, limits of detection (0.2–2.0 μg kg-1) and quantification (0.5–7.6 μg kg-1), linearity (limit of quantification-700 (heather) or 800 (multifloral and rosemary) μg kg-1), matrix effect (<20 % in most cases), trueness (recoveries between 81 % and 108 %), and precision (relative standard deviation < 15 %). Finally, of the seven acaricides investigated in several honey samples only τ-fluvalinate residues (