A selective molecularly imprinted polymer-solid phase extraction for the determination of fenitrothion in tomatoes

dc.creatorde Barros, LA
dc.creatorMartins, I
dc.creatorRath, S
dc.date2010
dc.dateJUN
dc.date2014-07-30T13:42:48Z
dc.date2015-11-26T17:52:01Z
dc.date2014-07-30T13:42:48Z
dc.date2015-11-26T17:52:01Z
dc.date.accessioned2018-03-29T00:35:27Z
dc.date.available2018-03-29T00:35:27Z
dc.identifierAnalytical And Bioanalytical Chemistry. Springer Heidelberg, v. 397, n. 3, n. 1355, n. 1361, 2010.
dc.identifier1618-2642
dc.identifierWOS:000277593200044
dc.identifier10.1007/s00216-010-3629-4
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/53728
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/53728
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1290130
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionA new and selective sorbent for molecularly imprinted solid-phase extraction (MISPE) was developed and applied for the determination of residues of fenitrothion (FNT) in tomatoes, using HPLC coupled to photodiode array detection (HPLC-DAD). Using FNT as the template molecule, methacrylic acid as the functional monomer, ethylene glycol dimethacrylate as the cross-linker, toluene as the porogenic solvent, and bulk polymerization as the synthetic method, a molecularly imprinted polymer (MIP) was synthesized. In order to choose the medium which promotes the best molecular recognition of FNT by the MIP, the adsorption of FNT by the MIP was studied in different media containing acetonitrile and toluene. Besides FNT, three structurally related compounds were used to evaluate the selectivity of the FNT-molecularly imprinted polymer. The MIP exhibited the highest selective rebinding to FNT. The method developed was validated, using fortified blank tomato samples. The extraction efficiency was 96%. The limits of detection and quantitation were 0.050 and 0.130 A mu g g(-1), respectively. The intra-day precision was 5.9% and the inter-day precision 8.1%. The accuracy was higher than 89% for a concentration level around the maximum residue limit of 0.5 A mu g g(-1).
dc.description397
dc.description3
dc.description1355
dc.description1361
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionFAPESP [2007/02306-9]
dc.languageen
dc.publisherSpringer Heidelberg
dc.publisherHeidelberg
dc.publisherAlemanha
dc.relationAnalytical And Bioanalytical Chemistry
dc.relationAnal. Bioanal. Chem.
dc.rightsfechado
dc.rightshttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dc.sourceWeb of Science
dc.subjectMolecularly imprinted polymer
dc.subjectMolecularly imprinted solid-phase extraction
dc.subjectFenitrothion
dc.subjectTomatoes
dc.subjectPerformance Liquid-chromatography
dc.subjectWater Samples
dc.subjectMain Metabolites
dc.subjectMicroextraction
dc.subjectSeparation
dc.subjectLeaves
dc.subjectUrine
dc.titleA selective molecularly imprinted polymer-solid phase extraction for the determination of fenitrothion in tomatoes
dc.typeArtículos de revistas


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