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Simultaneous determination of pesticides in fruits by using second-order fluorescence data resolved by unfolded partial least-squares coupled to residual bilinearization

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dc.citation.volume2018
dc.creatorVillar Navarro, Mercedes
dc.creatorCabezón, Miguel Angel
dc.creatorDamiani, Patricia Cecilia
dc.date.accessioned2020-12-16T22:05:08Z
dc.date.available2020-12-16T22:05:08Z
dc.date.issued2018-10-16
dc.descriptionIn the present work, a chemometric-assisted spectrofluorimetric method has been developed for the simultaneous determination of natural fluorescent pesticides, carbaryl, carbendazim, and thiabendazole, in orange and banana. Only a simple extraction with methanol was required as sample pretreatment. Emission-excitation fluorescence matrices were obtained and resolved by using a second-order multivariate calibration method based on unfolded partial least-squares combined with residual bilinearization (U-PLS/RBL) for achieving “second-order advantage.” In this way, pesticides were determined in fruits even in the presence of inner filter effects, background interactions, strong spectral overlapping, and unexpected components. U-PLS can cope with effects that cause trilinearity loss such as, inner filter effects, including background in the calibration set; meanwhile, RBL allows to resolve the presence of unexpected components. The extraction technique was validated against a commonly applied technique based on the use of ethyl acetate and sodium sulfate. Besides, results obtained for real samples were statistically compared with those obtained by using HPLC. LODs of 0.038, 0.054, and 0.018 mg·kg−1 and 0.044, 0.072, and 0.020 mg·kg−1 were obtained for carbaryl, carbendazim, and thiabendazole in banana and orange samples, respectively; values were in accordance with the MRLs (Maximum Residue Limits) established by different official control organizations such as National Food Safety and Quality Service (SENASA), Codex Alimentarius (based on Food and Agriculture Organization (FAO) of the United Nations and World Health Organization (WHO), and Environmental Protection Agency (EPA).es
dc.description.filFil: Villar Navarro, Mercedes. Universidad de Sevilla. Facultad de Química. Departamento de Química Analítica; España.es
dc.description.filFil: Cabezón, Miguel Angel. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Departamento de Química Analítica; Argentina.es
dc.description.filFil: Damiani, Patricia Cecilia. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Química Rosario (IQUIR-CONICET); Argentina.es
dc.description.filFil: Damiani, Patricia Cecilia. Pontificia Universidad Católica Argentina. Facultad de Química e Ingeniería del Rosario; Argentina.es
dc.description.sponsorshipUniversidad Nacional de Rosario (UNR): Projects BIO 253 and BIO 415es
dc.description.sponsorshipUniversidad Católica Argentinaes
dc.description.sponsorshipConsejo Nacional de Investigaciones Científicas y Técnicas (CONICET)es
dc.description.sponsorshipAgencia Nacional de Promoción Científica y Tecnológica (ANPCyT)es
dc.formatapplication/pdf
dc.format.extent1-18
dc.identifier.issn2090-9071
dc.identifier.urihttp://hdl.handle.net/2133/19490
dc.language.isoenges
dc.publisherHindawies
dc.relation.publisherversionhttps://www.hindawi.com/journals/jchem/2018/3217465/es
dc.relation.publisherversionhttps://doi.org/10.1155/2018/3217465es
dc.rightsopenAccesses
dc.rights.holderVillar Navarro, Mercedeses
dc.rights.holderCabezón, Miguel Angeles
dc.rights.holderDamiani, Patricia Ceciliaes
dc.rights.holderUniversidad Nacional de Rosarioes
dc.rights.textAttribution 4.0 International (CC BY 4.0)es
dc.rights.urihttp://creativecommons.org/licenses/by/2.5/ar/*
dc.subjectPesticides in fruitses
dc.subjectSimultaneous determinationes
dc.subjectNatural fluorescent pesticideses
dc.subjectSpectrofluorimetric methodses
dc.subjectOrangees
dc.subjectBananaes
dc.titleSimultaneous determination of pesticides in fruits by using second-order fluorescence data resolved by unfolded partial least-squares coupled to residual bilinearizationes
dc.typePublicadaes
dc.typearticle
dc.typeartículo
dc.type.collectionarticulo
dc.type.versionpublishedVersion

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