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dc.contributor.author
Clementi, Luis Alberto
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Aguirre, Miren
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Leiza, Jose
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Gugliotta, Luis Marcelino
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Vega, Jorge Ruben
dc.date.available
2017-07-14T13:39:25Z
dc.date.issued
2017-03
dc.identifier.citation
Clementi, Luis Alberto; Aguirre, Miren; Leiza, Jose; Gugliotta, Luis Marcelino; Vega, Jorge Ruben; Multi-wavelength UV-detection in Capillary Hydrodynamic Fractionation. Data Treatment for an Absolute Estimate of the Particle Size Distribution; Pergamon-Elsevier Science Ltd; Journal of Quantitative Spectroscopy and Radiative Transfer; 189; 3-2017; 168-175
dc.identifier.issn
0022-4073
dc.identifier.uri
http://hdl.handle.net/11336/20489
dc.description.abstract
A new approach is proposed for estimating the particle size distribution (PSD) of hydrophobic colloids by capillary hydrodynamic fractionation (CHDF) based on UV-detection at several wavelengths. At each elution time, the multi-wavelength UV signal is used to estimate the instantaneous PSD at the detector cell by solving the involved inverse problem through an artificial neural network. Then, the global PSD is obtained as a weighted sum of the estimated instantaneous PSDs along the entire elution time interval. With the current approach, the estimation procedure is absolute in the sense that no calibration of diameters is required and the instrumental broadening introduced by the fractionation capillary is automatically compensated for. The proposed method was evaluated on the basis of narrow polystyrene standards, as follows: i) a single standard, to emulate a narrow unimodal PSD; ii) a mixture of three standards of relatively close average diameters, to emulate a broad unimodal PSD; and iii) a mixture of two standards of quite different average diameters, to emulate a bimodal PSD. Experimental results indicate that the new approach is able to produce adequate PSD estimates provided that the particle refractive index is known with a relatively high accuracy.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Pergamon-Elsevier Science Ltd
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
CAPILLARY HYDRODYNAMIC FRACTIONATION
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INSTRUMENTAL BROADENING
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MULTI-WAVELENGTH UV-DETECTION
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PARTICLE SIZE DISTRIBUTION
dc.subject.classification
Otras Ingeniería de los Materiales
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Ingeniería de los Materiales
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INGENIERÍAS Y TECNOLOGÍAS
dc.title
Multi-wavelength UV-detection in Capillary Hydrodynamic Fractionation. Data Treatment for an Absolute Estimate of the Particle Size Distribution
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-07-10T13:10:18Z
dc.journal.volume
189
dc.journal.pagination
168-175
dc.journal.pais
Estados Unidos
dc.description.fil
Fil: Clementi, Luis Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
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Fil: Aguirre, Miren. Universidad del País Vasco; España
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Fil: Leiza, Jose. Universidad del País Vasco; España
dc.description.fil
Fil: Gugliotta, Luis Marcelino. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
dc.description.fil
Fil: Vega, Jorge Ruben. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
dc.journal.title
Journal of Quantitative Spectroscopy and Radiative Transfer
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0022407316304575?via%3Dihub
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.jqsrt.2016.11.024
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