Disposable pipette extraction for the analysis of pesticides in fruit and vegetables using gas chromatography/mass spectrometry.
Identifieur interne : 000B13 ( Ncbi/Curation ); précédent : 000B12; suivant : 000B14Disposable pipette extraction for the analysis of pesticides in fruit and vegetables using gas chromatography/mass spectrometry.
Auteurs : Hongxia Guan [États-Unis] ; William E. Brewer ; Sherry T. Garris ; Stephen L. MorganSource :
- Journal of chromatography. A [ 1873-3778 ] ; 2010.
English descriptors
- KwdEn :
- Adsorption, Calibration, Chromatography, Reverse-Phase, Citrus sinensis (chemistry), Daucus carota (chemistry), Dichlorvos (chemistry), Disposable Equipment, Fruit (chemistry), Gas Chromatography-Mass Spectrometry (methods), Limit of Detection, Mevinphos (chemistry), Pesticides (analysis), Reproducibility of Results.
- MESH :
- chemical , analysis : Pesticides.
- chemical , chemistry : Dichlorvos, Mevinphos.
- chemistry : Citrus sinensis, Daucus carota, Fruit.
- methods : Gas Chromatography-Mass Spectrometry.
- Adsorption, Calibration, Chromatography, Reverse-Phase, Disposable Equipment, Limit of Detection, Reproducibility of Results.
Abstract
Organochlorine, organophosphate pesticides and fungicides in fruits and vegetables were analyzed using disposable pipette extraction (DPX) followed by gas chromatography-mass spectrometry-selective ion monitoring (GC/MS-SIM). The intrinsic rapid mixing capabilities of DPX result in fast and efficient extractions, and eluates are concentrated by using minimal elution solvent volumes rather than solvent evaporation methods. Matrix-matched calibrations were performed with reversed phase mechanisms (DPX-RP), and the limits of detection (LOD) were determined to be lower than 0.1 microg/mL for all targeted pesticides in carrot and orange sample matrices. Coefficients of determination (r(2)) were greater than 0.995 for most studied pesticides. DPX-RP exhibited recoveries between 72 and 116% for nonpolar and slightly polar pesticides (logP>2) with most of the recoveries over 88%. Only very polar pesticides (e.g., acephate, mathamidophos) were not extracted well using DPX-RP.
DOI: 10.1016/j.chroma.2010.01.047
PubMed: 20144461
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pubmed:20144461Le document en format XML
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Brewer</name></author><author><name sortKey="Garris, Sherry T" sort="Garris, Sherry T" uniqKey="Garris S" first="Sherry T" last="Garris">Sherry T. Garris</name></author><author><name sortKey="Morgan, Stephen L" sort="Morgan, Stephen L" uniqKey="Morgan S" first="Stephen L" last="Morgan">Stephen L. Morgan</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2010">2010</date><idno type="RBID">pubmed:20144461</idno><idno type="pmid">20144461</idno><idno type="doi">10.1016/j.chroma.2010.01.047</idno><idno type="wicri:Area/PubMed/Corpus">000869</idno><idno type="wicri:Area/PubMed/Curation">000869</idno><idno type="wicri:Area/PubMed/Checkpoint">000869</idno><idno type="wicri:Area/Ncbi/Merge">000B13</idno><idno type="wicri:Area/Ncbi/Curation">000B13</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Disposable pipette extraction for the analysis of pesticides in fruit and vegetables using gas chromatography/mass spectrometry.</title><author><name sortKey="Guan, Hongxia" sort="Guan, Hongxia" uniqKey="Guan H" first="Hongxia" last="Guan">Hongxia Guan</name><affiliation wicri:level="2"><nlm:affiliation>Department of Chemistry & Biochemistry, University of South Carolina, 631 Sumter Street, Columbia, SC 29208, USA.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Chemistry & Biochemistry, University of South Carolina, 631 Sumter Street, Columbia, SC 29208</wicri:regionArea><placeName><region type="state">Caroline du Sud</region></placeName></affiliation></author><author><name sortKey="Brewer, William E" sort="Brewer, William E" uniqKey="Brewer W" first="William E" last="Brewer">William E. Brewer</name></author><author><name sortKey="Garris, Sherry T" sort="Garris, Sherry T" uniqKey="Garris S" first="Sherry T" last="Garris">Sherry T. Garris</name></author><author><name sortKey="Morgan, Stephen L" sort="Morgan, Stephen L" uniqKey="Morgan S" first="Stephen L" last="Morgan">Stephen L. Morgan</name></author></analytic><series><title level="j">Journal of chromatography. A</title><idno type="eISSN">1873-3778</idno><imprint><date when="2010" type="published">2010</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adsorption</term><term>Calibration</term><term>Chromatography, Reverse-Phase</term><term>Citrus sinensis (chemistry)</term><term>Daucus carota (chemistry)</term><term>Dichlorvos (chemistry)</term><term>Disposable Equipment</term><term>Fruit (chemistry)</term><term>Gas Chromatography-Mass Spectrometry (methods)</term><term>Limit of Detection</term><term>Mevinphos (chemistry)</term><term>Pesticides (analysis)</term><term>Reproducibility of Results</term></keywords><keywords scheme="MESH" type="chemical" qualifier="analysis" xml:lang="en"><term>Pesticides</term></keywords><keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Dichlorvos</term><term>Mevinphos</term></keywords><keywords scheme="MESH" qualifier="chemistry" xml:lang="en"><term>Citrus sinensis</term><term>Daucus carota</term><term>Fruit</term></keywords><keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Gas Chromatography-Mass Spectrometry</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adsorption</term><term>Calibration</term><term>Chromatography, Reverse-Phase</term><term>Disposable Equipment</term><term>Limit of Detection</term><term>Reproducibility of Results</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Organochlorine, organophosphate pesticides and fungicides in fruits and vegetables were analyzed using disposable pipette extraction (DPX) followed by gas chromatography-mass spectrometry-selective ion monitoring (GC/MS-SIM). The intrinsic rapid mixing capabilities of DPX result in fast and efficient extractions, and eluates are concentrated by using minimal elution solvent volumes rather than solvent evaporation methods. Matrix-matched calibrations were performed with reversed phase mechanisms (DPX-RP), and the limits of detection (LOD) were determined to be lower than 0.1 microg/mL for all targeted pesticides in carrot and orange sample matrices. Coefficients of determination (r(2)) were greater than 0.995 for most studied pesticides. DPX-RP exhibited recoveries between 72 and 116% for nonpolar and slightly polar pesticides (logP>2) with most of the recoveries over 88%. Only very polar pesticides (e.g., acephate, mathamidophos) were not extracted well using DPX-RP.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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