English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/144303
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:


Screening of pesticides and polycyclic aromatic hydrocarbons in feeds and fish tissues by gas chromatography coupled to high-resolution mass spectrometry using atmospheric pressure chemical ionization

AuthorsNácher-Mestre, Jaime; Serrano, Roque; Portolés-Nicolau, Tania; Berntssen, Marc H. G.; Pérez-Sánchez, Jaume ; Hernández Hernández, Félix
Qualitative validation
Organic contaminants
Gas chromatography
High-resolution mass spectrometry
Issue Date21-Feb-2014
PublisherAmerican Chemical Society
CitationJournal of agricultural and food chemistry 62: 2165-2174 (2014)
AbstractThis paper reports a wide-scope screening for detection and identification of pesticides and polycyclic aromatic hydrocarbons (PAHs) in feeds and fish tissues. QuEChERS sample treatment was applied, using freezing as an additional cleanup. Analysis was carried out by gas chromatography coupled to hybrid quadrupole time-of-flight mass spectrometry with atmospheric pressure chemical ionization (GC-(APCI) QTOF MS). The qualitative validation was performed for over 133 representative pesticides and 24 PAHs at 0.01 and 0.05 mg/kg. Subsequent application of the screening method to aquaculture samples made it possible to detect several compounds from the target list, such as chlorpyrifos-methyl, pirimiphos-methyl, and ethoxyquin, among others. Light PAHs (≤4 rings) were found in both animal and vegetable samples. The reliable identification of the compounds was supported by accurate mass measurements and the presence of at least two representative m/z ions in the spectrum together with the retention time of the peak, in agreement with the reference standard. Additionally, the search was widened to include other pesticides for which standards were not available, thanks to the expected presence of the protonated molecule and/or molecular ion in the APCI spectra. This could allow the detection and tentative identification of other pesticides different from those included in the validated target list. © 2014 American Chemical Society.
Publisher version (URL)https://doi.org/10.1021/jf405366n
Identifiersissn: 1520-5118
Appears in Collections:(IATS) Artículos
Files in This Item:
File Description SizeFormat 
2014-Screening of pesticides and polycyclic aromatic hydrocarbons.pdf1,02 MBAdobe PDFThumbnail
Show full item record
Review this work

Related articles:

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.