Quantification of 397 pesticide residues in different types of commercial teas: Validation of high accuracy methods and quality assessment
| Autor: | Tuan-Kiet Ly, Tran-Thi Nhu-Trang, Philippe Behra |
|---|---|
| Přispěvatelé: | Chimie Agro-Industrielle (CAI), Ecole nationale supérieure des ingénieurs en arts chimiques et technologiques-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Center of Analytical Services and Experimentation (CASE), Nguyen Tat Thanh University [Vietnam] (NTTU) |
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
[SDV.SA]Life Sciences [q-bio]/Agricultural sciences
QuEChERS Calibration curve [SDV]Life Sciences [q-bio] Matrix effec 010501 environmental sciences Quechers 01 natural sciences Analytical Chemistry Tandem Mass Spectrometry GC-MS/MS Pesticides t UPLC-MS/MS 0105 earth and related environmental sciences Chromatography Pesticide residue Tea Quality assessment 010401 analytical chemistry Pesticide Residues General Medicine Pesticide Pesticide assessment 6. Clean water 0104 chemical sciences Environmental science Uplc ms ms SPE Chromatography Liquid Food Science |
| Zdroj: | Food Chemistry Food Chemistry, Elsevier, 2022, 370, pp.130986. ⟨10.1016/j.foodchem.2021.130986⟩ |
| ISSN: | 0308-8146 |
| DOI: | 10.1016/j.foodchem.2021.130986⟩ |
| Popis: | International audience; Analytical methods with high sensitivity and accuracy were successfully validated for the quantification of 397 pesticides in different types of tea. For the UPLC-MS/MS method, 191 pesticides of 200 ones in total had “soft” matrix effects and could be quantified by calibration curves in the solvent. For the GC-MS/MS method, matrix-matched calibration curves were established on a mixed blank including white, green, oolong and black organic teas. The method limit of quantifications ranged from 1.0 µg kg−1 to 10 µg kg−1 (UPLC-MS/MS) and 1.0 µg kg−1 to 50 µg kg−1 (GC-MS/MS), with 70–120% of recovery. These methods was subsequently applied to 106 tea samples from several origins, in which 26 samples contained at least one pesticide violation, with a total of 43 pesticide residue violations. The most frequently detected pesticides were neonicotinoids, synthetic pyrethroids, and triazole fungicides. Taiwan had the most pesticide-contaminated samples followed by China, Vietnam, and India. |
| Databáze: | OpenAIRE |
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