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dc.contributor.authorRamos, Juan Josées_ES
dc.contributor.authorRial-Otero, R.es_ES
dc.contributor.authorRamos, Lourdeses_ES
dc.contributor.authorCapelo, J. L.es_ES
dc.date.accessioned2019-10-01T06:56:03Z-
dc.date.available2019-10-01T06:56:03Z-
dc.date.issued2008-
dc.identifier.citationJournal of Chromatography A 1212(1-2): 145-149 (2008)es_ES
dc.identifier.issn0021-9673-
dc.identifier.urihttp://hdl.handle.net/10261/191923-
dc.description.abstractAn ultrasonic-assisted matrix solid-phase dispersion (UA-MSPD) method has been developed for extracting and cleaning-up 15 organophosphorus pesticides (OPPs) and 9 triazines in fruits. Using reversed phase octasilyl-derivatised silica (C8) as dispersant and ethyl acetate as extraction solvent, two sonication devices, an ultrasonic bath and a sonoreactor, were tested for speeding and increasing the efficiency of the MSPD process. A standard MSPD and a heating-assisted MSPD procedure were also done. Gas chromatography–mass spectrometry was used for analyte determination. 1-min sonication with the sonoreactor at 50% amplitude provided the best results, with reproducibilities below 15% for the pesticides studied. The general low detection limits (1–42 μg kg−1) ensure proper determination at maximum allowed residue levels set in current legislations, except for dimethoate and disulfuton. The analytical performance of the method was evaluated for apples, pear and apricot, showing little or no matrix effect.es_ES
dc.description.sponsorshipR.R.-O. acknowledges to FCT for grant SFRH/BPD/23072/2005. J.J.R. thanks MEC for FPI grant and aid EST20070624838. J.J.R. and L.R. thank MEC (CTQ-2006-14993/BQU).es_ES
dc.language.isoenges_ES
dc.publisherElsevieres_ES
dc.rightsclosedAccesses_ES
dc.subjectUltrasoundes_ES
dc.subjectPesticideses_ES
dc.titleUltrasonic-assisted matrix solid-phase dispersion as an improved methodology for the determination of pesticides in fruitses_ES
dc.typeartículoes_ES
dc.identifier.doi10.1016/j.chroma.2008.10.028-
dc.description.peerreviewedPeer reviewedes_ES
dc.relation.publisherversionhttps://doi.org/10.1016/j.chroma.2008.10.028es_ES
dc.identifier.e-issn1873-3778-
dc.contributor.funderFundação para a Ciência e a Tecnologia (Portugal)es_ES
dc.contributor.funderMinisterio de Educación y Ciencia (España)es_ES
dc.contributor.funderComunidad de Madrides_ES
dc.relation.csices_ES
oprm.item.hasRevisionno ko 0 false*
dc.identifier.funderhttp://dx.doi.org/10.13039/501100001871es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/100012818es_ES
dc.identifier.pmid18952216-
dc.type.coarhttp://purl.org/coar/resource_type/c_6501es_ES
item.openairetypeartículo-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.grantfulltextnone-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextNo Fulltext-
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