Latex Particle Size Distribution by Dynamic Light Scattering. A New Data Processing for Multiangle Measurements

Autores
Vega, Jorge Ruben; Gugliotta, Luis Marcelino; González, Verónica Doris Guadalupe; Meira, Gregorio Raul
Año de publicación
2003
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Multi-angle dynamic light scattering (DLS) provides a better estimate of the particle size distribution (PSD) than single-angle DLS. However, multi-angle data treatment requires to appropriately weight each autocorrelation measurement prior to calculating the PSD. The weighting coefficients may be directly obtained from: i) the autocorrelation baselines, or ii) independent measurement of the average light intensity by elastic light scattering. However, the propagation of errors associated to such procedures may intolerably corrupt the PSD estimate. In this work, an alternative recursive least squares calculation is proposed that estimates the weighting coefficients on the basis of the complete autocorrelation measurement. The method was validated through a numerical example that simulates the analysis of a polystyrene latex with a bimodal PSD; and with “measurements” taken at 10 detection angles. The ill-conditioned nature of the problem determines that the “true” PSD cannot be recuperated, even in the absence of errors. A sensitivity analysis was carried out to determine the effect of errors in the weighting coefficients on the PSD recuperations.
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
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
Fil: González, Verónica Doris Guadalupe. 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
Fil: Meira, Gregorio Raul. 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
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/27379
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Latex Particle Size Distribution by Dynamic Light Scattering. A New Data Processing for Multiangle MeasurementsVega, Jorge RubenGugliotta, Luis MarcelinoGonzález, Verónica Doris GuadalupeMeira, Gregorio Raulhttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2Multi-angle dynamic light scattering (DLS) provides a better estimate of the particle size distribution (PSD) than single-angle DLS. However, multi-angle data treatment requires to appropriately weight each autocorrelation measurement prior to calculating the PSD. The weighting coefficients may be directly obtained from: i) the autocorrelation baselines, or ii) independent measurement of the average light intensity by elastic light scattering. However, the propagation of errors associated to such procedures may intolerably corrupt the PSD estimate. In this work, an alternative recursive least squares calculation is proposed that estimates the weighting coefficients on the basis of the complete autocorrelation measurement. The method was validated through a numerical example that simulates the analysis of a polystyrene latex with a bimodal PSD; and with “measurements” taken at 10 detection angles. The ill-conditioned nature of the problem determines that the “true” PSD cannot be recuperated, even in the absence of errors. A sensitivity analysis was carried out to determine the effect of errors in the weighting coefficients on the PSD recuperations.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; ArgentinaFil: 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; ArgentinaFil: González, Verónica Doris Guadalupe. 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; ArgentinaFil: Meira, Gregorio Raul. 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; ArgentinaAcademic Press Inc Elsevier Science2003-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/27379Vega, Jorge Ruben; Gugliotta, Luis Marcelino; González, Verónica Doris Guadalupe; Meira, Gregorio Raul; Latex Particle Size Distribution by Dynamic Light Scattering. A New Data Processing for Multiangle Measurements; Academic Press Inc Elsevier Science; Journal of Colloid and Interface Science; 261; 1; 7-2003; 74-810021-9797CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/S0021-9797(03)00040-7info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:37:49Zoai:ri.conicet.gov.ar:11336/27379instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:37:49.349CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Latex Particle Size Distribution by Dynamic Light Scattering. A New Data Processing for Multiangle Measurements
title Latex Particle Size Distribution by Dynamic Light Scattering. A New Data Processing for Multiangle Measurements
spellingShingle Latex Particle Size Distribution by Dynamic Light Scattering. A New Data Processing for Multiangle Measurements
Vega, Jorge Ruben
title_short Latex Particle Size Distribution by Dynamic Light Scattering. A New Data Processing for Multiangle Measurements
title_full Latex Particle Size Distribution by Dynamic Light Scattering. A New Data Processing for Multiangle Measurements
title_fullStr Latex Particle Size Distribution by Dynamic Light Scattering. A New Data Processing for Multiangle Measurements
title_full_unstemmed Latex Particle Size Distribution by Dynamic Light Scattering. A New Data Processing for Multiangle Measurements
title_sort Latex Particle Size Distribution by Dynamic Light Scattering. A New Data Processing for Multiangle Measurements
dc.creator.none.fl_str_mv Vega, Jorge Ruben
Gugliotta, Luis Marcelino
González, Verónica Doris Guadalupe
Meira, Gregorio Raul
author Vega, Jorge Ruben
author_facet Vega, Jorge Ruben
Gugliotta, Luis Marcelino
González, Verónica Doris Guadalupe
Meira, Gregorio Raul
author_role author
author2 Gugliotta, Luis Marcelino
González, Verónica Doris Guadalupe
Meira, Gregorio Raul
author2_role author
author
author
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Multi-angle dynamic light scattering (DLS) provides a better estimate of the particle size distribution (PSD) than single-angle DLS. However, multi-angle data treatment requires to appropriately weight each autocorrelation measurement prior to calculating the PSD. The weighting coefficients may be directly obtained from: i) the autocorrelation baselines, or ii) independent measurement of the average light intensity by elastic light scattering. However, the propagation of errors associated to such procedures may intolerably corrupt the PSD estimate. In this work, an alternative recursive least squares calculation is proposed that estimates the weighting coefficients on the basis of the complete autocorrelation measurement. The method was validated through a numerical example that simulates the analysis of a polystyrene latex with a bimodal PSD; and with “measurements” taken at 10 detection angles. The ill-conditioned nature of the problem determines that the “true” PSD cannot be recuperated, even in the absence of errors. A sensitivity analysis was carried out to determine the effect of errors in the weighting coefficients on the PSD recuperations.
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
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
Fil: González, Verónica Doris Guadalupe. 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
Fil: Meira, Gregorio Raul. 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
description Multi-angle dynamic light scattering (DLS) provides a better estimate of the particle size distribution (PSD) than single-angle DLS. However, multi-angle data treatment requires to appropriately weight each autocorrelation measurement prior to calculating the PSD. The weighting coefficients may be directly obtained from: i) the autocorrelation baselines, or ii) independent measurement of the average light intensity by elastic light scattering. However, the propagation of errors associated to such procedures may intolerably corrupt the PSD estimate. In this work, an alternative recursive least squares calculation is proposed that estimates the weighting coefficients on the basis of the complete autocorrelation measurement. The method was validated through a numerical example that simulates the analysis of a polystyrene latex with a bimodal PSD; and with “measurements” taken at 10 detection angles. The ill-conditioned nature of the problem determines that the “true” PSD cannot be recuperated, even in the absence of errors. A sensitivity analysis was carried out to determine the effect of errors in the weighting coefficients on the PSD recuperations.
publishDate 2003
dc.date.none.fl_str_mv 2003-07
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/27379
Vega, Jorge Ruben; Gugliotta, Luis Marcelino; González, Verónica Doris Guadalupe; Meira, Gregorio Raul; Latex Particle Size Distribution by Dynamic Light Scattering. A New Data Processing for Multiangle Measurements; Academic Press Inc Elsevier Science; Journal of Colloid and Interface Science; 261; 1; 7-2003; 74-81
0021-9797
CONICET Digital
CONICET
url http://hdl.handle.net/11336/27379
identifier_str_mv Vega, Jorge Ruben; Gugliotta, Luis Marcelino; González, Verónica Doris Guadalupe; Meira, Gregorio Raul; Latex Particle Size Distribution by Dynamic Light Scattering. A New Data Processing for Multiangle Measurements; Academic Press Inc Elsevier Science; Journal of Colloid and Interface Science; 261; 1; 7-2003; 74-81
0021-9797
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/S0021-9797(03)00040-7
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Academic Press Inc Elsevier Science
publisher.none.fl_str_mv Academic Press Inc Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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