Determination of pesticides and metabolites in wine by high performance liquid chromatography and second-order calibration methods

dc.creatorBraga, JWB
dc.creatorBottoli, CBG
dc.creatorJardim, ICSF
dc.creatorGoicoechea, HC
dc.creatorOlivieri, AC
dc.creatorPoppi, RJ
dc.date2007
dc.dateMAY 4
dc.date2014-11-17T12:44:20Z
dc.date2015-11-26T17:37:51Z
dc.date2014-11-17T12:44:20Z
dc.date2015-11-26T17:37:51Z
dc.date.accessioned2018-03-29T00:19:32Z
dc.date.available2018-03-29T00:19:32Z
dc.identifierJournal Of Chromatography A. Elsevier Science Bv, v. 1148, n. 2, n. 200, n. 210, 2007.
dc.identifier0021-9673
dc.identifierWOS:000246242700010
dc.identifier10.1016/j.chroma.2007.03.018
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/79572
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/79572
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/79572
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1286068
dc.descriptionThe models parallel factor analysis (PARAFAC) and the recently introduced bilinear least squares (BLLS) were applied to develop second-order calibration methods to high performance liquid chromatography with diode array detection (HPLC-DAD) data, where overlap of interferences with the compounds of interest was observed, making the determination and resolution of the analytes possible. In this work, the simultaneous determination of five pesticides and two metabolites in wine samples by HPLC-DAD was performed, using the second-order advantage. The results of two chromatographic methods were compared, involving either isocratic or gradient elution. An appropriate preprocessing method was necessary to correct the effects of time shifts, baseline variations and background. BLLS presented results that were of the same quality as PARAFAC in five cases, but in two other situations only PARAFAC enabled analyte quantitation. Relative errors of prediction lower than 10% for all compounds were obtained, indicating that the methodology employing HLPC-DAD and second-order calibration can handle complex analytical systems. (C) 2007 Elsevier B.V. All rights reserved.
dc.description1148
dc.description2
dc.description200
dc.description210
dc.languageen
dc.publisherElsevier Science Bv
dc.publisherAmsterdam
dc.publisherHolanda
dc.relationJournal Of Chromatography A
dc.relationJ. Chromatogr. A
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subjectBLLS
dc.subjectPARAFAC
dc.subjectpesticides determination
dc.subjectwine
dc.subjectHPLC-DAD
dc.subjectBilinear Least-squares
dc.subjectDiode-array Detection
dc.subjectParallel Factor-analysis
dc.subjectMultiresidue Method
dc.subjectGas-chromatography
dc.subjectRank Annihilation
dc.subjectFungicides
dc.subjectError
dc.subjectSensitivity
dc.subjectPrediction
dc.titleDetermination of pesticides and metabolites in wine by high performance liquid chromatography and second-order calibration methods
dc.typeArtículos de revistas


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