Development of automated online gel permeation chromatography-gas chromatograph mass spectrometry for measuring multiresidual pesticides in agricultural products.
Identifieur interne : 002397 ( Main/Merge ); précédent : 002396; suivant : 002398Development of automated online gel permeation chromatography-gas chromatograph mass spectrometry for measuring multiresidual pesticides in agricultural products.
Auteurs : Li-Bin Liu [République populaire de Chine] ; Yuki Hashi ; Ya-Ping Qin ; Hai-Xia Zhou ; Jin-Ming LinSource :
- Journal of chromatography. B, Analytical technologies in the biomedical and life sciences [ 1570-0232 ] ; 2007.
English descriptors
- KwdEn :
- Automation, Brassica (chemistry), Chromatography, Gel (methods), Citrus sinensis (chemistry), Crops, Agricultural (chemistry), Cucumis sativus (chemistry), Daucus carota (chemistry), Food Contamination (analysis), Gas Chromatography-Mass Spectrometry (methods), Malus (chemistry), Online Systems, Oryza (chemistry), Pesticide Residues (analysis), Pesticides (analysis), Reproducibility of Results, Solanum tuberosum (chemistry).
- MESH :
- chemical , analysis : Pesticide Residues, Pesticides.
- analysis : Food Contamination.
- chemistry : Brassica, Citrus sinensis, Crops, Agricultural, Cucumis sativus, Daucus carota, Malus, Oryza, Solanum tuberosum.
- methods : Chromatography, Gel, Gas Chromatography-Mass Spectrometry.
- Automation, Online Systems, Reproducibility of Results.
Abstract
An automated online gel permeation chromatography-gas chromatograph mass spectrometer (GPC-GC/MS) was developed for the rapid determination of residual pesticides in agricultural products. Pesticides were extracted from homogenized food samples with acetonitrile and decontaminated via the matrix solid-phase dispersion (MSPD) technique, using a primary secondary amine as sorbent prior to GPC-GC/MS analysis. A slightly modified preparation method and automated GPC step proved useful in minimizing matrix interference. To evaluate the performance of the system, 97 target pesticides were spiked at a concentration of 0.1mg/kg into a range of food types, including potato, cabbage, carrot, apple, orange, cucumber, and rice. A low flow rate of 0.1 mL/min in GPC resulted in a 40-fold reduction in solvent consumption compared with conventional GPC column applications. The combination of MSPD technique and GPC-GC/MS for the analysis of the 97 pesticides can be accomplished within 90 min. Most pesticides were recovered in the range of 70-120%, with relative standard deviation generally less than 10%. The results demonstrate that the method can be successfully applied with acceptable recoveries to a broad range of target pesticides within a diverse range of food types.
DOI: 10.1016/j.jchromb.2006.07.032
PubMed: 16931180
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pubmed:16931180Le document en format XML
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<country xml:lang="fr">République populaire de Chine</country>
<wicri:regionArea>State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, PO Box 2871, Beijing 100085</wicri:regionArea>
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<author><name sortKey="Hashi, Yuki" sort="Hashi, Yuki" uniqKey="Hashi Y" first="Yuki" last="Hashi">Yuki Hashi</name>
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<author><name sortKey="Qin, Ya Ping" sort="Qin, Ya Ping" uniqKey="Qin Y" first="Ya-Ping" last="Qin">Ya-Ping Qin</name>
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<author><name sortKey="Zhou, Hai Xia" sort="Zhou, Hai Xia" uniqKey="Zhou H" first="Hai-Xia" last="Zhou">Hai-Xia Zhou</name>
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<author><name sortKey="Hashi, Yuki" sort="Hashi, Yuki" uniqKey="Hashi Y" first="Yuki" last="Hashi">Yuki Hashi</name>
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<author><name sortKey="Qin, Ya Ping" sort="Qin, Ya Ping" uniqKey="Qin Y" first="Ya-Ping" last="Qin">Ya-Ping Qin</name>
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<author><name sortKey="Zhou, Hai Xia" sort="Zhou, Hai Xia" uniqKey="Zhou H" first="Hai-Xia" last="Zhou">Hai-Xia Zhou</name>
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<term>Crops, Agricultural (chemistry)</term>
<term>Cucumis sativus (chemistry)</term>
<term>Daucus carota (chemistry)</term>
<term>Food Contamination (analysis)</term>
<term>Gas Chromatography-Mass Spectrometry (methods)</term>
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<term>Online Systems</term>
<term>Oryza (chemistry)</term>
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<term>Pesticides (analysis)</term>
<term>Reproducibility of Results</term>
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<keywords scheme="MESH" qualifier="chemistry" xml:lang="en"><term>Brassica</term>
<term>Citrus sinensis</term>
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<front><div type="abstract" xml:lang="en">An automated online gel permeation chromatography-gas chromatograph mass spectrometer (GPC-GC/MS) was developed for the rapid determination of residual pesticides in agricultural products. Pesticides were extracted from homogenized food samples with acetonitrile and decontaminated via the matrix solid-phase dispersion (MSPD) technique, using a primary secondary amine as sorbent prior to GPC-GC/MS analysis. A slightly modified preparation method and automated GPC step proved useful in minimizing matrix interference. To evaluate the performance of the system, 97 target pesticides were spiked at a concentration of 0.1mg/kg into a range of food types, including potato, cabbage, carrot, apple, orange, cucumber, and rice. A low flow rate of 0.1 mL/min in GPC resulted in a 40-fold reduction in solvent consumption compared with conventional GPC column applications. The combination of MSPD technique and GPC-GC/MS for the analysis of the 97 pesticides can be accomplished within 90 min. Most pesticides were recovered in the range of 70-120%, with relative standard deviation generally less than 10%. The results demonstrate that the method can be successfully applied with acceptable recoveries to a broad range of target pesticides within a diverse range of food types.</div>
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