Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 448797
Title Analysis of pesticide residues in strawberries and soils by GC-MS/MS, LC-MS/MS and two-dimensional GC– time-of-flight MS comparing organic and integrated pest management farming
Author(s) Fernandes, V.C.; Lehotay, S.J.; Geis-Asteggiantec, L.; Kwon, H.; Mol, J.G.J.; Kamp, H.J. van der; Mateus, N.; Domingues, V.F.; Delerue-Matos, C.
Source Food Additives & Contaminants. Pt. A, Chemistry, Analysis, Control, Exposure & Risk Assessment 31 (2014)2. - ISSN 1944-0049 - p. 262 - 270.
DOI https://doi.org/10.1080/19440049.2013.865842
Department(s) BU Contaminants & Toxins
Publication type Refereed Article in a scientific journal
Publication year 2014
Keyword(s) pressure gas-chromatography - tandem mass-spectrometry - performance liquid-chromatography - quechers sample preparation - qualitative aspects - multiresidue method - vegetables - fruits - extraction - foods
Abstract In this study, we analyzed 22 strawberry and soil samples after their collection over the course of 2 years to compare the residue profiles from organic farming to integrated pest management practices in Portugal. For sample preparation, we used the citrate-buffered version of the quick, easy, cheap, effective, rugged, and safe (QuEChERS) method. We applied three different methods for analysis: (i) 27 pesticides were targeted using LC-MS/MS; (ii) 143 were targeted using low pressure GC - tandem mass spectrometry (LP-GC-MS/MS); and (iii) More than > 600 pesticides were screened in a targeted and untargeted approach using comprehensive, two-dimensional gas chromatography time-of-flight mass spectrometry (GC × GC-TOF-MS). Comparison was made of the analyses using the different methods for the shared samples. The results were similar, thereby providing satisfactory confirmation of both similarly positive and negative findings. No pesticides were found in the organic-farmed samples. In samples from integrated pest management practices, 9 pesticides were determined and confirmed to be present ranging from 2 µg kg-1 for fluazifop-p-butyl to 50 µg kg-1 for fenpropathrin. Concentrations of residues in strawberries were less than European maximum residue limits.
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