Occurrence of Pesticide Residues in Spanish Honey Measured by QuEChERS Method Followed by Liquid and Gas Chromatography-Tandem Mass Spectrometry.

ABSTRACT: In the current study, the QuEChERS extraction method with slight modifications, followed by liquid and gas chromatography-tandem mass spectrometry, was applied for the determination of 399 pesticide residues in 91 raw honey samples from northeastern Spain. The quality control procedure established in Document No. SANTE/12682/2019 was successfully followed: the responses in reagent blank and blank honey samples were below 30% of the reporting limit (0.01 mg kg-1) for all analysed compounds, the correlation coefficients (R2) were higher than 0.99 in most calibration curves, the deviation of back-calculated concentration from the true concentration was below ±20% (using the standard of 50 μg L-1 concentration), and the recoveries of spiked samples on matrix were within the range of 70-120% fo

SUBMITTER: Lasheras RJ 

PROVIDER: S-EPMC8534991 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature