Quantification of fenitrothion and its main metabolites in poplar leaves by isotope dilution gas chromatography-mass spectrometry coupled with solid-phase microextraction.
Identifieur interne : 003836 ( Main/Exploration ); précédent : 003835; suivant : 003837Quantification of fenitrothion and its main metabolites in poplar leaves by isotope dilution gas chromatography-mass spectrometry coupled with solid-phase microextraction.
Auteurs : Alicia Sánchez [Espagne] ; Silvia Millán ; M Carmen Sampedro ; Nora Unceta ; Esther Rodríguez ; M Aranzazu Goicolea ; Ram N J. BarrioSource :
- Journal of chromatography. A [ 0021-9673 ] ; 2008.
Descripteurs français
- KwdFr :
- MESH :
- analyse : Fénitrothion, Pesticides.
- composition chimique : Feuilles de plante.
- méthodes : Chromatographie gazeuse-spectrométrie de masse.
- Arbres, Indicateurs et réactifs, Normes de référence, Reproductibilité des résultats.
English descriptors
- KwdEn :
- MESH :
- chemical , analysis : Fenitrothion, Pesticides.
- chemistry : Plant Leaves.
- methods : Gas Chromatography-Mass Spectrometry.
- chemical : Indicators and Reagents, Reference Standards, Reproducibility of Results, Trees.
Abstract
A sensitive and specific method for determining fenitrothion and its main metabolites, 3-methyl-4-nitrophenol and fenitrooxon, in poplar leaves using deuterated isotopes as the internal standard is described. The analytes and the labeled isotopes were extracted from leaves by solid-phase microextraction and subsequently analysed by gas chromatography coupled with mass spectrometry. The method had a chromatographic run time of 17.0 min and good linearity over the range 0.01-10 mg kg(-1). The detection limits ranged between 2.5 and 0.6 microg kg(-1). The isotopic dilution technique allowed improving significantly the repetitivity even using different fibers with the same coating (RSD<5.1%). The method was applied successfully to study the persistence of fenitrothion in forestal matrices in a poplar forest after cannon spray application of the insecticide.
DOI: 10.1016/j.chroma.2007.10.097
PubMed: 18048045
Affiliations:
Links toward previous steps (curation, corpus...)
Le document en format XML
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<term>Pesticides (analysis)</term>
<term>Plant Leaves (chemistry)</term>
<term>Reference Standards (MeSH)</term>
<term>Reproducibility of Results (MeSH)</term>
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<front><div type="abstract" xml:lang="en">A sensitive and specific method for determining fenitrothion and its main metabolites, 3-methyl-4-nitrophenol and fenitrooxon, in poplar leaves using deuterated isotopes as the internal standard is described. The analytes and the labeled isotopes were extracted from leaves by solid-phase microextraction and subsequently analysed by gas chromatography coupled with mass spectrometry. The method had a chromatographic run time of 17.0 min and good linearity over the range 0.01-10 mg kg(-1). The detection limits ranged between 2.5 and 0.6 microg kg(-1). The isotopic dilution technique allowed improving significantly the repetitivity even using different fibers with the same coating (RSD<5.1%). The method was applied successfully to study the persistence of fenitrothion in forestal matrices in a poplar forest after cannon spray application of the insecticide.</div>
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<Abstract><AbstractText>A sensitive and specific method for determining fenitrothion and its main metabolites, 3-methyl-4-nitrophenol and fenitrooxon, in poplar leaves using deuterated isotopes as the internal standard is described. The analytes and the labeled isotopes were extracted from leaves by solid-phase microextraction and subsequently analysed by gas chromatography coupled with mass spectrometry. The method had a chromatographic run time of 17.0 min and good linearity over the range 0.01-10 mg kg(-1). The detection limits ranged between 2.5 and 0.6 microg kg(-1). The isotopic dilution technique allowed improving significantly the repetitivity even using different fibers with the same coating (RSD<5.1%). The method was applied successfully to study the persistence of fenitrothion in forestal matrices in a poplar forest after cannon spray application of the insecticide.</AbstractText>
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