@misc{10481/104854, year = {2025}, month = {6}, url = {https://hdl.handle.net/10481/104854}, abstract = {This work presents an ultrasound assisted extraction (UAE) combined with a QuEChERS approach, followed by liquid chromatography-tandem mass spectrometry (LC-MS/MS) analysis, for the determination of 20 mycotoxins and 10 pesticides in bee pollen and honey samples. The method was validated according to SANTE/11312/2021 guideline. Linearity was satisfactory (r > 0.99), with LODs ranging from 0.03 to 13.3 μg kg−1 and LOQs from 0.11 to 44.4 μg kg−1, except for five analytes in pollen. Trueness, expressed as apparent recoveries and evaluated at three concentration levels, was between 70 and 120 %, except for three compounds in honey and eight in pollen. RSDs for precisions were below 20 %. The method was applied to 28 honey and six pollen samples. Acetamiprid and azoxystrobin were detected in 29 % and 32 % of the honey samples, with concentration ranges of 1.26–16.2 μg kg−1 and 1.31–1.56 μg kg−1, respectively. No contaminants were found in any of the pollen samples.}, organization = {MCIN/AEI/10.13039/501100011033 PID2021-127804OB-I00, RYC2023-044255-I}, organization = {Andalousian Government PROYEXCEL_00195}, organization = {University of Almería}, organization = {Spanish Ministry of Universities}, organization = {European Union's NextGenerationEU funds}, organization = {FSE+}, organization = {Universidad de Granada / CBUA}, publisher = {Elsevier}, keywords = {Mycotoxins}, keywords = {Pesticides}, keywords = {Beekeeping products}, keywords = {Ultrasound-assisted extraction}, keywords = {QuEChERS}, keywords = {Liquid chromatography-tandem mass spectrometry}, title = {Addressing chemical risks in beekeeping products: development of a combined ultrasound-assisted extraction and QuEChERS-based method for the simultaneous determination of mycotoxins and pesticides in bee pollen and honey}, doi = {10.1016/j.foodcont.2025.111504}, author = {Álvarez-Romero, María and Marín Sáez, Jesús and García Campaña, Ana María and Hernández Mesa, Maykel and Gámiz Gracia, Laura}, }