QuEChERS-based analytical methods developed for LC-MS/MS multiresidue determination of pesticides in representative crop fatty matrices: Olives and sunflower seeds
| Autor: | Manuel García-Vara, Cristina Postigo, Patricia Palma, María José Bleda, Miren López de Alda |
|---|---|
| Přispěvatelé: | Ministerio de Ciencia e Innovación (España) |
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
Insecticides
Herbicides Solid Phase Extraction Pesticide Residues Pesticide residue analysis General Medicine Analytical Chemistry Sample pre-treatment Tandem Mass Spectrometry Olea Liquid chromatography-tandem mass spectrometry Seeds Helianthus Pesticides Agrochemicals Chromatography Liquid Food Science |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname |
| DOI: | 10.1016/j.foodchem.2022.132558 |
| Popis: | Oilseed crops are greatly extended all over the world. Their high fat content can interfere during pesticide multiresidue analysis through liquid chromatography-tandem mass spectrometry (LC-MS/MS). This work aimed at overcoming this issue by developing and validating two QuEChERS-based methods for LC-MS/MS determination of 42 pesticides in two fatty food matrices: olives and sunflower seeds. Optimization of the extraction method was achieved following a 26-2 fractional factorial design in a highly cost-effective way. Validation of the multi-residue methods demonstrated improved limits of detection, below the established maximum residue levels (MRLs) for almost all compounds, good precision, and trueness, in compliance with SANTE guidelines. Application of these methods to the analysis of real samples from the Iberian Peninsula showed the presence of some pesticides of relevant environmental concern, including four compounds contained in the Pesticide Action Network International list of highly hazardous pesticides, found at levels between 0.03 ng/g and 104 ng/g. This work has been funded by the European Union through the European Agricultural Fund for Rural Development (FitoFarmGest Operational Group PDR2020-101-030926), the Spanish Ministry of Science and Innovation (Project CEX2018-00794-S) and the Government of Catalonia (2017 SGR 01404). BEKOlut is acknowledged for the gift of QuEChERS kits. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|