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Food Chem ; 425: 136448, 2023 Nov 01.
Artigo em Inglês | MEDLINE | ID: mdl-37285627

RESUMO

A screening and semi-quantitative method was developed for the analysis of 694 various contaminants in honey, jam, jelly and syrup samples by ultrahigh-performance liquid chromatography and quadrupole time-of-flight mass spectrometry. Sample preparation, which was optimised using split factorial design, was based on acetate-buffered version of QuEChERS, followed by a clean-up step and a concentration step to enhance sensitivity of analytes. The method was validated according to SANTE/11312/2021 guidelines. The screening detection and limits of identification were established as being less than or equal to 0.05 mg.kg-1 for 89% and 74% of the contaminants, respectively. The validated screening method was applied to 50 concentrated sugary products. Overall, 46% of the samples were positive to pesticide residues. Most of the positive samples (78%) contained mixtures of pesticide residues. Three time-and-cost saving convenient strategies suitable for high-throughput analysis were proposed for the targeted semi-quantification of the previously contaminants identified in samples.


Assuntos
Mel , Resíduos de Praguicidas , Mel/análise , Resíduos de Praguicidas/análise , Cromatografia Líquida de Alta Pressão/métodos , Espectrometria de Massas/métodos , Cromatografia Líquida
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