Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/201542
Share/Export:
logo share SHARE logo core CORE BASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Title

Analysis of 52 pesticides in fresh fish muscle by QuEChERS extraction 1 followed by LC-MS/MS determination

AuthorsBarbieri, Maria Vittoria; Postigo, Cristina CSIC ORCID; Monllor-Alcaraz, Luis Simón; Guillem-Argiles, Nuria; Simionato, Julliana Izabelle; Stella, Elisa; Barceló, Damià CSIC ORCID; López de Alda, Miren CSIC ORCID
KeywordsBiota
Bioconcentration
Exposure
Liquid chromatography-mass spectrometry
Herbicides
Insecticides
Issue Date1-Feb-2019
PublisherElsevier
CitationScience of the Total Environment 653: 958-967 (2019)
AbstractPesticide pollution in water has been well described; however, little is known on pesticide accumulation by aquatic organisms, and to date, most studies in this line have been focused on persistent organochlorine pesticides. For this reason, a method based on QuEChERS extraction and subsequent liquid chromatography-tandem mass spectrometry (LC-MS/MS) analysis has been developed and validated for the determination of 52 medium to highly polar pesticides in fresh fish muscle. Target pesticides were selected on the basis of use and occurrence in surface waters. Quantification is carried out following an isotope dilution approach. The method developed is satisfactory in terms of accuracy (relative recoveries between 71 and 120%), precision (relative standard deviations below 21%) and sensitivity (limits of determination in the pg/g or low ng/g f.w. range for most compounds). The application of the validated methodology to fish specimens collected from the Adige River (Italy) revealed the presence of trace levels of diazinon, dichlorvos and diuron, and measurable levels of metolachlor, quinoxyfen, irgarol, terbutryn, and acetamiprid, but in all cases at concentrations below the default maximum residue level of 10 ng/g established for pesticides not specifically regulated in fish intended for human consumption. Metolachlor and quinoxyfen were both the most ubiquitous and abundant pesticides, in agreement with their high potential for bioaccumulation. Both are toxic to aquatic organisms, and therefore, their potential effects on aquatic ecosystems should be further explored. © 2018 Elsevier B.V.
Publisher version (URL)https://doi.org/10.1016/j.scitotenv.2018.10.289
URIhttp://hdl.handle.net/10261/201542
DOI958-967
Appears in Collections:(IDAEA) Artículos

Files in This Item:
File Description SizeFormat
Analysis of 52 pesticides in fresh fish muscle by QuEChERS extraction.pdfArtículo principal1,62 MBAdobe PDFThumbnail
View/Open
1-s2.0-S0048969718341858-mmc1.pdfMaterial suplementario1,84 MBAdobe PDFThumbnail
View/Open
Show full item record
Review this work

Google ScholarTM

Check

Altmetric

Dimensions


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