Application of zirconium dioxide nanoparticle sorbent for the clean-up step in post-harvest pesticide residue analysis.
Identifieur interne : 000782 ( Main/Exploration ); précédent : 000781; suivant : 000783Application of zirconium dioxide nanoparticle sorbent for the clean-up step in post-harvest pesticide residue analysis.
Auteurs : Ana Uclés [Espagne] ; Sonia Herrera L Pez [Espagne] ; Maria Dolores Hernando [Espagne] ; Roberto Rosal [Espagne] ; Carmen Ferrer [Espagne] ; Amadeo R. Fernández-Alba [Espagne]Source :
- Talanta [ 1873-3573 ] ; 2015.
English descriptors
- KwdEn :
- Adsorption, Chromatography, Liquid, Citrus sinensis (chemistry), Limit of Detection, Linear Models, Nanoparticles (chemistry), Nanotubes, Carbon (chemistry), Pesticide Residues (analysis), Pesticide Residues (chemistry), Pesticide Residues (isolation & purification), Pyrus (chemistry), Safety, Solid Phase Extraction (economics), Solid Phase Extraction (methods), Soot (chemistry), Tandem Mass Spectrometry, Time Factors, Yttrium (chemistry), Zirconium (chemistry).
- MESH :
- chemical , analysis : Pesticide Residues.
- chemical , chemistry : Nanotubes, Carbon, Pesticide Residues, Soot, Yttrium, Zirconium.
- chemistry : Citrus sinensis, Nanoparticles, Pyrus.
- economics : Solid Phase Extraction.
- chemical , isolation & purification : Pesticide Residues.
- methods : Solid Phase Extraction.
- Adsorption, Chromatography, Liquid, Limit of Detection, Linear Models, Safety, Tandem Mass Spectrometry, Time Factors.
Abstract
The use of yttria-stabilized zirconium dioxide nanoparticles as d-SPE clean-up sorbent for a rapid and sensitive liquid chromatography-electrospray ionization-tandem mass spectrometry (LC-ESI-MS/MS) method for the determination of post-harvest fungicides (carbaryl, carbendazim, chlorpropham, diphenylamine, ethoxyquin, flutriafol, imazalil, iprodione, methomyl, myclobutanil, pirimiphos-methyl, prochloraz, pyrimethanil, thiabendazole, thiophanate-methyl and tolclofos-methyl) in orange and pear samples has been evaluated and validated. The sample preparation was a modification of the QuEChERS extraction method using yttria-stabilized zirconium dioxide and multi-walled carbon nanotubes (MWCNTs) nanoparticles as the solid phase extraction (d-SPE) clean-up sorbents prior to injecting the ten-fold diluted extracts into the LC system. By using the yttria-stabilized zirconium dioxide extraction method, more recoveries in the 70-120% range were obtained - thus this method was used for the validation. Quantification was carried out using a matrix-matched calibration curve which was linear in the 1-500 µg kg(-1) range for almost all the pesticides studied. The validated limit of quantification was 10 µg kg(-1) for most of the studied compounds, except chlorpropham, ethoxyquin and thiophanate-methyl. Pesticide recoveries at the 10 and 100 µg kg(-1) concentration levels were satisfactory, with values between 77% and 120% and relative standard deviations (RSD) lower than 10% (n=5). The developed method was applied for the determination of selected fungicides in 20 real orange and pear samples. Four different pesticide residues were detected in 10 of these commodities; 20% of the samples contained pesticide residues at a quantifiable level (equal to or above the LOQs) for at least one pesticide residue. The most frequently-detected pesticide residues were: carbendazim, thiabendazole and imazalil-all were below the MRL. The highest concentration found was imazalil at 1175 µg kg(-1) in a pear sample.
DOI: 10.1016/j.talanta.2015.05.055
PubMed: 26452791
Affiliations:
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Fernández-Alba</name><affiliation wicri:level="1"><nlm:affiliation>Agrifood Campus of International Excellence (ceiA3), European Union Reference Laboratory for Pesticide Residues in Fruit & Vegetables, University of Almeria, Spain. Electronic address: amadeo@ual.es.</nlm:affiliation><country xml:lang="fr">Espagne</country><wicri:regionArea>Agrifood Campus of International Excellence (ceiA3), European Union Reference Laboratory for Pesticide Residues in Fruit & Vegetables, University of Almeria</wicri:regionArea><wicri:noRegion>University of Almeria</wicri:noRegion></affiliation></author></analytic><series><title level="j">Talanta</title><idno type="eISSN">1873-3573</idno><imprint><date when="2015" type="published">2015</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adsorption</term><term>Chromatography, Liquid</term><term>Citrus sinensis (chemistry)</term><term>Limit of Detection</term><term>Linear Models</term><term>Nanoparticles (chemistry)</term><term>Nanotubes, Carbon (chemistry)</term><term>Pesticide Residues (analysis)</term><term>Pesticide Residues (chemistry)</term><term>Pesticide Residues (isolation & purification)</term><term>Pyrus (chemistry)</term><term>Safety</term><term>Solid Phase Extraction (economics)</term><term>Solid Phase Extraction (methods)</term><term>Soot (chemistry)</term><term>Tandem Mass Spectrometry</term><term>Time Factors</term><term>Yttrium (chemistry)</term><term>Zirconium (chemistry)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="analysis" xml:lang="en"><term>Pesticide Residues</term></keywords><keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Nanotubes, Carbon</term><term>Pesticide Residues</term><term>Soot</term><term>Yttrium</term><term>Zirconium</term></keywords><keywords scheme="MESH" qualifier="chemistry" xml:lang="en"><term>Citrus sinensis</term><term>Nanoparticles</term><term>Pyrus</term></keywords><keywords scheme="MESH" qualifier="economics" xml:lang="en"><term>Solid Phase Extraction</term></keywords><keywords scheme="MESH" type="chemical" qualifier="isolation & purification" xml:lang="en"><term>Pesticide Residues</term></keywords><keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Solid Phase Extraction</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adsorption</term><term>Chromatography, Liquid</term><term>Limit of Detection</term><term>Linear Models</term><term>Safety</term><term>Tandem Mass Spectrometry</term><term>Time Factors</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The use of yttria-stabilized zirconium dioxide nanoparticles as d-SPE clean-up sorbent for a rapid and sensitive liquid chromatography-electrospray ionization-tandem mass spectrometry (LC-ESI-MS/MS) method for the determination of post-harvest fungicides (carbaryl, carbendazim, chlorpropham, diphenylamine, ethoxyquin, flutriafol, imazalil, iprodione, methomyl, myclobutanil, pirimiphos-methyl, prochloraz, pyrimethanil, thiabendazole, thiophanate-methyl and tolclofos-methyl) in orange and pear samples has been evaluated and validated. The sample preparation was a modification of the QuEChERS extraction method using yttria-stabilized zirconium dioxide and multi-walled carbon nanotubes (MWCNTs) nanoparticles as the solid phase extraction (d-SPE) clean-up sorbents prior to injecting the ten-fold diluted extracts into the LC system. By using the yttria-stabilized zirconium dioxide extraction method, more recoveries in the 70-120% range were obtained - thus this method was used for the validation. Quantification was carried out using a matrix-matched calibration curve which was linear in the 1-500 µg kg(-1) range for almost all the pesticides studied. The validated limit of quantification was 10 µg kg(-1) for most of the studied compounds, except chlorpropham, ethoxyquin and thiophanate-methyl. Pesticide recoveries at the 10 and 100 µg kg(-1) concentration levels were satisfactory, with values between 77% and 120% and relative standard deviations (RSD) lower than 10% (n=5). The developed method was applied for the determination of selected fungicides in 20 real orange and pear samples. Four different pesticide residues were detected in 10 of these commodities; 20% of the samples contained pesticide residues at a quantifiable level (equal to or above the LOQs) for at least one pesticide residue. The most frequently-detected pesticide residues were: carbendazim, thiabendazole and imazalil-all were below the MRL. The highest concentration found was imazalil at 1175 µg kg(-1) in a pear sample.</div></front></TEI><affiliations><list><country><li>Espagne</li></country><region><li>Communauté de Madrid</li></region></list><tree><country name="Espagne"><noRegion><name sortKey="Ucles, Ana" sort="Ucles, Ana" uniqKey="Ucles A" first="Ana" last="Uclés">Ana Uclés</name></noRegion><name sortKey="Dolores Hernando, Maria" sort="Dolores Hernando, Maria" uniqKey="Dolores Hernando M" first="Maria" last="Dolores Hernando">Maria Dolores Hernando</name><name sortKey="Fernandez Alba, Amadeo R" sort="Fernandez Alba, Amadeo R" uniqKey="Fernandez Alba A" first="Amadeo R" last="Fernández-Alba">Amadeo R. Fernández-Alba</name><name sortKey="Ferrer, Carmen" sort="Ferrer, Carmen" uniqKey="Ferrer C" first="Carmen" last="Ferrer">Carmen Ferrer</name><name sortKey="Herrera L Pez, Sonia" sort="Herrera L Pez, Sonia" uniqKey="Herrera L Pez S" first="Sonia" last="Herrera L Pez">Sonia Herrera L Pez</name><name sortKey="Rosal, Roberto" sort="Rosal, Roberto" uniqKey="Rosal R" first="Roberto" last="Rosal">Roberto Rosal</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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