NDLI: Solid-phase extraction and gas chromatography-tandem mass spectrometry method for the simultaneous determination of several pesticides in water.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Penetra, A. Vale Cardoso, V. Ferreira, E. Benoliel, M. J.
Description	Country affiliation: Portugal Author Affiliation: Penetra A ( Laboratório Central, Empresa Portuguesa das Aguas Livres, S.A., EPAL, Rua do Alviela 12, 1170-012 Lisboa, Portugal. apenetra@epal.pt)
Abstract	Contamination of surface and groundwater sources with pesticide residues has been of great concern for a long time and it is a major challenge for the preservation and sustainability of the environment. In order to accomplish the requirements of the European Directive 98/83/EC, we developed and validated an analytical method based on the combination of gas chromatography and tandem quadrupole mass spectrometry (GC-MS/MS) using solid-phase extraction as sample preparation. In this work nine pesticides were studied: molinate, simazine, atrazine, terbuthylazine, diazinon, alachlor, metalaxyl, metolachlor and pendimethalin. In order to get the best sensitivity and selectivity for each pesticide, several parameters of the tandem mass spectrometry were optimized using the MRM mode. Good linearity of the detector response was found for all pesticides at concentrations within the tested working range, with linear determination coefficients higher than 0.9988. Recoveries studies in several matrices with different fortification levels were performed, with recoveries between 77 and 115% with RSD lower than 9.5%. The MQLs obtained for these compounds were between 0.013 microg L(-1) and 0.022 microg L(-1), which were much lower than the maximum level established by the European legislation.
File Format	HTM / HTML
ISSN	02731223
Issue Number	3
Volume Number	62
e-ISSN	19969732
Journal	Water Science & Technology
Language	English
Publisher	IWA Publishing
Publisher Date	2010-01-01
Publisher Place	Great Britain (UK)
Access Restriction	Subscribed
Subject Keyword	Discipline Hydrology Gas Chromatography-mass Spectrometry Methods Pesticides Chemistry Solid Phase Extraction Water Pollutants, Chemical Water Tandem Mass Spectrometry Journal Article
Content Type	Text
Resource Type	Article
Subject	Environmental Engineering Water Science and Technology

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