Immunochemical Screening of Pesticides (Simazine and Cypermethrin) in Orange Oil
Identifieur interne : 000A15 ( Ncbi/Merge ); précédent : 000A14; suivant : 000A16Immunochemical Screening of Pesticides (Simazine and Cypermethrin) in Orange Oil
Auteurs : Mikaela Nichkova [États-Unis] ; Xun Fu [États-Unis] ; Zheng Yang [États-Unis] ; Ping Zhong [États-Unis] ; James R. Sanborn [États-Unis] ; Dan Chang [États-Unis] ; Shirley J. Gee [États-Unis] ; Bruce D. Hammock [États-Unis]Source :
- Journal of agricultural and food chemistry [ 0021-8561 ] ; 2009.
Abstract
Pesticide residue analysis in citrus oils is very important for their quality and marketing. This study assessed the reliability and sensitivity of enzyme-linked immunosorbent assays (ELISA) for simazine and cypermethrin screening in orange oil. Simazine was analyzed after extraction of the oil with methanolic phosphate buffer with a limit of quantitation (LOQ) of 40 µg/L for 1-fold and ~100 µg/L for 10-fold oils. Due to matrix effects the immunoanalysis of cypermethrin required hexane–acetonitrile partitioning followed by silica solid phase extraction. The method detected levels higher than 0.5 ppm (mg/L). This LOQ is lower than the U.S. EPA tolerance level (0.9 ppm) for cypermethrin in citrus oils. A good correlation (
Url:
DOI: 10.1021/jf900652a
PubMed: 19526986
PubMed Central: 3033343
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PMC:3033343Le document en format XML
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<author><name sortKey="Nichkova, Mikaela" sort="Nichkova, Mikaela" uniqKey="Nichkova M" first="Mikaela" last="Nichkova">Mikaela Nichkova</name>
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Immunochemical Screening of Pesticides (Simazine and Cypermethrin) in Orange Oil</title>
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<country xml:lang="fr">États-Unis</country>
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</placeName>
<wicri:cityArea>Synthia-LLC, P.O. Box 1238, Gualala</wicri:cityArea>
</affiliation>
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<author><name sortKey="Hammock, Bruce D" sort="Hammock, Bruce D" uniqKey="Hammock B" first="Bruce D." last="Hammock">Bruce D. Hammock</name>
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<series><title level="j">Journal of agricultural and food chemistry</title>
<idno type="ISSN">0021-8561</idno>
<idno type="eISSN">1520-5118</idno>
<imprint><date when="2009">2009</date>
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<front><div type="abstract" xml:lang="en"><p id="P2">Pesticide residue analysis in citrus oils is very important for their quality and marketing. This study assessed the reliability and sensitivity of enzyme-linked immunosorbent assays (ELISA) for simazine and cypermethrin screening in orange oil. Simazine was analyzed after extraction of the oil with methanolic phosphate buffer with a limit of quantitation (LOQ) of 40 µg/L for 1-fold and ~100 µg/L for 10-fold oils. Due to matrix effects the immunoanalysis of cypermethrin required hexane–acetonitrile partitioning followed by silica solid phase extraction. The method detected levels higher than 0.5 ppm (mg/L). This LOQ is lower than the U.S. EPA tolerance level (0.9 ppm) for cypermethrin in citrus oils. A good correlation (<italic>r</italic>
<sup>2</sup>
0.99) between ELISA and LC-MS/MS was observed for the analysis of both analytes in 1-fold orange oil. Immunochemical screening can be used to reduce instrumental analysis costs by its use in preliminary orange oil screening.</p>
</div>
</front>
</TEI>
<pmc article-type="research-article" xml:lang="EN"><pmc-comment>The publisher of this article does not allow downloading of the full text in XML form.</pmc-comment>
<pmc-dir>properties manuscript</pmc-dir>
<front><journal-meta><journal-id journal-id-type="nlm-journal-id">0374755</journal-id>
<journal-id journal-id-type="pubmed-jr-id">4421</journal-id>
<journal-id journal-id-type="nlm-ta">J Agric Food Chem</journal-id>
<journal-title>Journal of agricultural and food chemistry</journal-title>
<issn pub-type="ppub">0021-8561</issn>
<issn pub-type="epub">1520-5118</issn>
</journal-meta>
<article-meta><article-id pub-id-type="pmid">19526986</article-id>
<article-id pub-id-type="pmc">3033343</article-id>
<article-id pub-id-type="doi">10.1021/jf900652a</article-id>
<article-id pub-id-type="manuscript">NIHMS267615</article-id>
<article-categories><subj-group subj-group-type="heading"><subject>Article</subject>
</subj-group>
</article-categories>
<title-group><article-title>Immunochemical Screening of Pesticides (Simazine and Cypermethrin) in Orange Oil</article-title>
</title-group>
<contrib-group><contrib contrib-type="author"><name><surname>Nichkova</surname>
<given-names>Mikaela</given-names>
</name>
<xref ref-type="aff" rid="A1">†</xref>
<xref ref-type="author-notes" rid="FN1">⊥</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Fu</surname>
<given-names>Xun</given-names>
</name>
<xref ref-type="aff" rid="A2">‡</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Yang</surname>
<given-names>Zheng</given-names>
</name>
<xref ref-type="aff" rid="A3">§</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Zhong</surname>
<given-names>Ping</given-names>
</name>
<xref ref-type="aff" rid="A2">‡</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Sanborn</surname>
<given-names>James R.</given-names>
</name>
<xref ref-type="aff" rid="A1">†</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Chang</surname>
<given-names>Dan</given-names>
</name>
<xref ref-type="aff" rid="A4">#</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Gee</surname>
<given-names>Shirley J.</given-names>
</name>
<xref ref-type="aff" rid="A4">#</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Hammock</surname>
<given-names>Bruce D.</given-names>
</name>
<xref ref-type="aff" rid="A1">†</xref>
<xref ref-type="corresp" rid="cor1">*</xref>
</contrib>
</contrib-group>
<aff id="A1"><label>†</label>
Department of Entomology, University of California, One Shields Avenue, Davis, California 95616</aff>
<aff id="A2"><label>‡</label>
Givaudan Flavors Corp., 1199 Edison Drive, Cincinnati, Ohio 45216</aff>
<aff id="A3"><label>§</label>
Givaudan Flavors Corp., 4705 U. S. Highway 92 East, Lakeland, Florida 33801</aff>
<aff id="A4"><label>#</label>
Synthia-LLC, P.O. Box 1238, Gualala, California 95445</aff>
<author-notes><corresp id="cor1"><label>*</label>
Corresponding author [telephone (530) 752-8465; fax (530) 752-1537; <email>bdhammock@ucdavis.edu</email>
]</corresp>
<fn id="FN1" fn-type="present-address"><label>⊥</label>
<p id="P1">Present address: Pharmasan Laboratories, 373 280th Street, Osceola, Wisconsin 54020</p>
</fn>
</author-notes>
<pub-date pub-type="nihms-submitted"><day>26</day>
<month>1</month>
<year>2011</year>
</pub-date>
<pub-date pub-type="ppub"><day>8</day>
<month>7</month>
<year>2009</year>
</pub-date>
<pub-date pub-type="pmc-release"><day>3</day>
<month>2</month>
<year>2011</year>
</pub-date>
<volume>57</volume>
<issue>13</issue>
<fpage>5673</fpage>
<lpage>5679</lpage>
<permissions><copyright-statement>© 2009 American Chemical Society</copyright-statement>
<copyright-year>2009</copyright-year>
</permissions>
<abstract><p id="P2">Pesticide residue analysis in citrus oils is very important for their quality and marketing. This study assessed the reliability and sensitivity of enzyme-linked immunosorbent assays (ELISA) for simazine and cypermethrin screening in orange oil. Simazine was analyzed after extraction of the oil with methanolic phosphate buffer with a limit of quantitation (LOQ) of 40 µg/L for 1-fold and ~100 µg/L for 10-fold oils. Due to matrix effects the immunoanalysis of cypermethrin required hexane–acetonitrile partitioning followed by silica solid phase extraction. The method detected levels higher than 0.5 ppm (mg/L). This LOQ is lower than the U.S. EPA tolerance level (0.9 ppm) for cypermethrin in citrus oils. A good correlation (<italic>r</italic>
<sup>2</sup>
0.99) between ELISA and LC-MS/MS was observed for the analysis of both analytes in 1-fold orange oil. Immunochemical screening can be used to reduce instrumental analysis costs by its use in preliminary orange oil screening.</p>
</abstract>
<kwd-group><kwd>Immunoassay</kwd>
<kwd>orange oil</kwd>
<kwd>pyrethroids</kwd>
<kwd>triazines</kwd>
</kwd-group>
<contract-num rid="ES1">P42 ES004699-24
||ES</contract-num>
<contract-sponsor id="ES1">National Institute of Environmental Health Sciences : NIEHS</contract-sponsor>
</article-meta>
</front>
</pmc>
<affiliations><list><country><li>États-Unis</li>
</country>
<region><li>Californie</li>
<li>Floride</li>
<li>Ohio</li>
</region>
</list>
<tree><country name="États-Unis"><region name="Californie"><name sortKey="Nichkova, Mikaela" sort="Nichkova, Mikaela" uniqKey="Nichkova M" first="Mikaela" last="Nichkova">Mikaela Nichkova</name>
</region>
<name sortKey="Chang, Dan" sort="Chang, Dan" uniqKey="Chang D" first="Dan" last="Chang">Dan Chang</name>
<name sortKey="Fu, Xun" sort="Fu, Xun" uniqKey="Fu X" first="Xun" last="Fu">Xun Fu</name>
<name sortKey="Gee, Shirley J" sort="Gee, Shirley J" uniqKey="Gee S" first="Shirley J." last="Gee">Shirley J. Gee</name>
<name sortKey="Hammock, Bruce D" sort="Hammock, Bruce D" uniqKey="Hammock B" first="Bruce D." last="Hammock">Bruce D. Hammock</name>
<name sortKey="Sanborn, James R" sort="Sanborn, James R" uniqKey="Sanborn J" first="James R." last="Sanborn">James R. Sanborn</name>
<name sortKey="Yang, Zheng" sort="Yang, Zheng" uniqKey="Yang Z" first="Zheng" last="Yang">Zheng Yang</name>
<name sortKey="Zhong, Ping" sort="Zhong, Ping" uniqKey="Zhong P" first="Ping" last="Zhong">Ping Zhong</name>
</country>
</tree>
</affiliations>
</record>
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