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dc.contributor.author
Lozano, Valeria Antonella  
dc.contributor.author
Muñoz de la Peña, Arsenio  
dc.contributor.author
Durán Merás, Isabel  
dc.contributor.author
Espinosa Mansilla, Anunciación  
dc.contributor.author
Escandar, Graciela Monica  
dc.date.available
2016-06-03T15:32:11Z  
dc.date.issued
2013-06  
dc.identifier.citation
Lozano, Valeria Antonella; Muñoz de la Peña, Arsenio; Durán Merás, Isabel; Espinosa Mansilla, Anunciación; Escandar, Graciela Monica; Four-way multivariate calibration using ultra-fast High-Performance Liquid Chromatography with Fluorescence Excitation-Emission detection. Application to the direct analysis of chlorophylls a and b and pheophytins a and b in olive oils; Elsevier; Chemometrics and Intelligent Laboratory Systems; 125; 6-2013; 121-131  
dc.identifier.issn
0169-7439  
dc.identifier.uri
http://hdl.handle.net/11336/6027  
dc.description.abstract
A four-way multivariate calibration approach, based on the combination of ultra-fast high-performance liquid chromatographic data and four-way algorithms, is described for the first time. To achieve this goal, several emission wavelength-elution time matrices (ETMs) were recorded as a function of the excitation wavelength. Each sample was injected into the chromatograph eight times, in sequential mode, each time exciting at a different wavelength across the excitation spectra of the compounds of interest, and the emission spectra were recorded along the full chromatogram using a fast scanning fluorescence detector. The data were obtained in a very short time with an ultrafast chromatographic system operating in gradient mode. The three-way ETM data thus obtained for the calibration sample set and for each of the test samples were joined into a single four-way array, which was subsequently analyzed with parallel factor analysis (PARAFAC), unfolded partial least-squares with residual trilinearization (U-PLS/RTL) and multi-way partial least-squares with residual trilinearization (N-PLS/RTL) multivariate calibration algorithms. Best results were found when either U-PLS/RTL or N-PLS/RTL algorithms were used to perform the multivariate calibration. The method was applied to the direct determination of chlorophylls a and b and pheophytins a and b in olive oil samples, in the presence of other interfering fluorescent compounds, and without previous sample treatment.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Elsevier  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/  
dc.subject
Elution Timeemission Wavelengthexcitation Wavelength Data  
dc.subject
Third-Order Multivariate Calibration  
dc.subject
Chlorophylls And Pheophytins  
dc.subject
Olive Oils  
dc.subject.classification
Química Analítica  
dc.subject.classification
Ciencias Químicas  
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS  
dc.title
Four-way multivariate calibration using ultra-fast High-Performance Liquid Chromatography with Fluorescence Excitation-Emission detection. Application to the direct analysis of chlorophylls a and b and pheophytins a and b in olive oils  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2016-06-01T13:32:37Z  
dc.journal.volume
125  
dc.journal.pagination
121-131  
dc.journal.pais
Países Bajos  
dc.journal.ciudad
Amsterdam  
dc.description.fil
Fil: Lozano, Valeria Antonella. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Rosario. Instituto de Química Rosario; Argentina  
dc.description.fil
Fil: Muñoz de la Peña, Arsenio. Universidad de Extremadura; España  
dc.description.fil
Fil: Durán Merás, Isabel. Universidad de Extremadura; España  
dc.description.fil
Fil: Espinosa Mansilla, Anunciación. Universidad de Extremadura; España  
dc.description.fil
Fil: Escandar, Graciela Monica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Rosario. Instituto de Química Rosario; Argentina  
dc.journal.title
Chemometrics and Intelligent Laboratory Systems  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0169743913000622  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.chemolab.2013.04.005  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.chemolab.2013.04.005