Partitioning of the pesticide trifluralin between dissolved organic matter and water using automated SPME-GC/MS

Handle URI:
http://hdl.handle.net/10754/594204
Title:
Partitioning of the pesticide trifluralin between dissolved organic matter and water using automated SPME-GC/MS
Authors:
Caupos, Emilie; Touffet, Arnaud; Mazellier, Patrick; Croue, Jean Philippe
Abstract:
Solid-phase microextraction (SPME) was used to determine the equilibrium association constant for a pesticide, trifluralin (TFR), with dissolved organic matter (DOM). After optimization of the SPME method for the analysis of TFR, partition coefficients (K DOM) with three different sources of DOM were determined in buffered solutions at pH 7. Commercial humic acids and DOM fractions isolated from two surface waters were used. The values of log K DOMvaried from 4.3 to 5.8, depending on the nature of the organic material. A good correlation was established between log K DOMand DOM properties (as measured with the H/O atomic ratio and UV absorbance), in agreement with literature data. This is consistent with the effect of polarity and aromaticity for governing DOM-pollutant associations, regardless of the origin of DOM. This association phenomenon is relevant to better understand the behavior of pesticides in the environment since it controls part of pesticide leaching and fate in aquatic systems.
KAUST Department:
Water Desalination and Reuse Research Center (WDRC)
Citation:
Caupos E, Touffet A, Mazellier P, Croue J-P (2014) Partitioning of the pesticide trifluralin between dissolved organic matter and water using automated SPME-GC/MS. Environ Sci Pollut Res 22: 4201–4212. Available: http://dx.doi.org/10.1007/s11356-014-3614-0.
Publisher:
Springer Nature
Journal:
Environmental Science and Pollution Research
Issue Date:
4-Oct-2014
DOI:
10.1007/s11356-014-3614-0
PubMed ID:
25277710
Type:
Article
ISSN:
0944-1344; 1614-7499
Appears in Collections:
Articles; Water Desalination and Reuse Research Center (WDRC)

Full metadata record

DC FieldValue Language
dc.contributor.authorCaupos, Emilieen
dc.contributor.authorTouffet, Arnauden
dc.contributor.authorMazellier, Patricken
dc.contributor.authorCroue, Jean Philippeen
dc.date.accessioned2016-01-19T13:23:47Zen
dc.date.available2016-01-19T13:23:47Zen
dc.date.issued2014-10-04en
dc.identifier.citationCaupos E, Touffet A, Mazellier P, Croue J-P (2014) Partitioning of the pesticide trifluralin between dissolved organic matter and water using automated SPME-GC/MS. Environ Sci Pollut Res 22: 4201–4212. Available: http://dx.doi.org/10.1007/s11356-014-3614-0.en
dc.identifier.issn0944-1344en
dc.identifier.issn1614-7499en
dc.identifier.pmid25277710en
dc.identifier.doi10.1007/s11356-014-3614-0en
dc.identifier.urihttp://hdl.handle.net/10754/594204en
dc.description.abstractSolid-phase microextraction (SPME) was used to determine the equilibrium association constant for a pesticide, trifluralin (TFR), with dissolved organic matter (DOM). After optimization of the SPME method for the analysis of TFR, partition coefficients (K DOM) with three different sources of DOM were determined in buffered solutions at pH 7. Commercial humic acids and DOM fractions isolated from two surface waters were used. The values of log K DOMvaried from 4.3 to 5.8, depending on the nature of the organic material. A good correlation was established between log K DOMand DOM properties (as measured with the H/O atomic ratio and UV absorbance), in agreement with literature data. This is consistent with the effect of polarity and aromaticity for governing DOM-pollutant associations, regardless of the origin of DOM. This association phenomenon is relevant to better understand the behavior of pesticides in the environment since it controls part of pesticide leaching and fate in aquatic systems.en
dc.publisherSpringer Natureen
dc.subjectDissolved organic matteren
dc.subjectKDOM partition coefficienten
dc.subjectSPMEen
dc.subjectTrifluralinen
dc.titlePartitioning of the pesticide trifluralin between dissolved organic matter and water using automated SPME-GC/MSen
dc.typeArticleen
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)en
dc.identifier.journalEnvironmental Science and Pollution Researchen
dc.contributor.institutionUniversité de Poitiers, CNRS–UMR 6008, Laboratoire de Chimie et Microbiologie de l’Eau, ENSIPPoitiers, Franceen
dc.contributor.institutionUniversité Paris-Est, Leesu (UMR-MA-102), UPEC, ENPC, AgroParisTech, CréteilParis, Franceen
dc.contributor.institutionUniversité de Bordeaux, CNRS, UMR 5805, EPOC-Laboratoire de Physico et Toxico Chimie de l’Environnement, TalenceBordeaux, Franceen
kaust.authorCroue, Jean-Philippeen
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