Adsorption Isotherms of Substituted Benzophenones on a Reverse-Phase Liquid Chromatography System: Effect of the Mobile-Phase Composition

Autores
Sancho, Matias Israel; Blanco, Sonia Encarnacion; Castro, Eduardo Alberto
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Linear adsorption isotherms were registered by a frontal analysis method for four substituted benzophenones (BPs) using a liquid chromatography Luna C18(2) column as adsorbent. The isotherm data points were measured at different mobile-phase compositions of methanol−water, varying the methanol volume fraction from 0.4 to 0.6 with a step of 0.05 and keeping the temperature at 30 °C. Henry’s constants were obtained from the analysis of experimental data for each mobile-phase composition. The substituent effect on Henry’s constant was evaluated, and it was found that the hydrogen-bond acceptor ability of the p-substituent, the interactions of the carbonyl group with the polar mobile phase molecules, and the molecular volume are key aspects governing the adsorption process of the studied BPs. In addition, the effect of the mobile-phase composition was analyzed by applying two different models to predict the Henry’s constants and compare them to the experimental values. It was found that the Snyder model is the most suitable to describe the variation of the mentioned constant with the volume fraction of methanol in the mobile phase.
Fil: Sancho, Matias Israel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto Multidisciplinario de Investigaciones Biológicas de San Luis. Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Instituto Multidisciplinario de Investigaciones Biológicas de San Luis; Argentina
Fil: Blanco, Sonia Encarnacion. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto Multidisciplinario de Investigaciones Biológicas de San Luis. Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Instituto Multidisciplinario de Investigaciones Biológicas de San Luis; Argentina
Fil: Castro, Eduardo Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Materia
Adsorption Isotherms
Benzophenones
Frontal Analysis
Henry's constant
Mobile phase effect
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:11336/278385
Acceder
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spelling Adsorption Isotherms of Substituted Benzophenones on a Reverse-Phase Liquid Chromatography System: Effect of the Mobile-Phase CompositionSancho, Matias IsraelBlanco, Sonia EncarnacionCastro, Eduardo AlbertoAdsorption IsothermsBenzophenonesFrontal AnalysisHenry's constantMobile phase effecthttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Linear adsorption isotherms were registered by a frontal analysis method for four substituted benzophenones (BPs) using a liquid chromatography Luna C18(2) column as adsorbent. The isotherm data points were measured at different mobile-phase compositions of methanol−water, varying the methanol volume fraction from 0.4 to 0.6 with a step of 0.05 and keeping the temperature at 30 °C. Henry’s constants were obtained from the analysis of experimental data for each mobile-phase composition. The substituent effect on Henry’s constant was evaluated, and it was found that the hydrogen-bond acceptor ability of the p-substituent, the interactions of the carbonyl group with the polar mobile phase molecules, and the molecular volume are key aspects governing the adsorption process of the studied BPs. In addition, the effect of the mobile-phase composition was analyzed by applying two different models to predict the Henry’s constants and compare them to the experimental values. It was found that the Snyder model is the most suitable to describe the variation of the mentioned constant with the volume fraction of methanol in the mobile phase.Fil: Sancho, Matias Israel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto Multidisciplinario de Investigaciones Biológicas de San Luis. Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Instituto Multidisciplinario de Investigaciones Biológicas de San Luis; ArgentinaFil: Blanco, Sonia Encarnacion. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto Multidisciplinario de Investigaciones Biológicas de San Luis. Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Instituto Multidisciplinario de Investigaciones Biológicas de San Luis; ArgentinaFil: Castro, Eduardo Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; ArgentinaAmerican Chemical Society2010-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/278385Sancho, Matias Israel; Blanco, Sonia Encarnacion; Castro, Eduardo Alberto; Adsorption Isotherms of Substituted Benzophenones on a Reverse-Phase Liquid Chromatography System: Effect of the Mobile-Phase Composition; American Chemical Society; Journal of Chemical and Engineering Data; 55; 11; 11-2010; 4768-47740021-9568CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/je1003912info:eu-repo/semantics/altIdentifier/doi/10.1021/je1003912info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2026-01-08T13:04:03Zoai:ri.conicet.gov.ar:11336/278385instacron: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:34982026-01-08 13:04:04.124CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Adsorption Isotherms of Substituted Benzophenones on a Reverse-Phase Liquid Chromatography System: Effect of the Mobile-Phase Composition
title Adsorption Isotherms of Substituted Benzophenones on a Reverse-Phase Liquid Chromatography System: Effect of the Mobile-Phase Composition
spellingShingle Adsorption Isotherms of Substituted Benzophenones on a Reverse-Phase Liquid Chromatography System: Effect of the Mobile-Phase Composition
Sancho, Matias Israel
Adsorption Isotherms
Benzophenones
Frontal Analysis
Henry's constant
Mobile phase effect
title_short Adsorption Isotherms of Substituted Benzophenones on a Reverse-Phase Liquid Chromatography System: Effect of the Mobile-Phase Composition
title_full Adsorption Isotherms of Substituted Benzophenones on a Reverse-Phase Liquid Chromatography System: Effect of the Mobile-Phase Composition
title_fullStr Adsorption Isotherms of Substituted Benzophenones on a Reverse-Phase Liquid Chromatography System: Effect of the Mobile-Phase Composition
title_full_unstemmed Adsorption Isotherms of Substituted Benzophenones on a Reverse-Phase Liquid Chromatography System: Effect of the Mobile-Phase Composition
title_sort Adsorption Isotherms of Substituted Benzophenones on a Reverse-Phase Liquid Chromatography System: Effect of the Mobile-Phase Composition
dc.creator.none.fl_str_mv Sancho, Matias Israel
Blanco, Sonia Encarnacion
Castro, Eduardo Alberto
author Sancho, Matias Israel
author_facet Sancho, Matias Israel
Blanco, Sonia Encarnacion
Castro, Eduardo Alberto
author_role author
author2 Blanco, Sonia Encarnacion
Castro, Eduardo Alberto
author2_role author
author
dc.subject.none.fl_str_mv Adsorption Isotherms
Benzophenones
Frontal Analysis
Henry's constant
Mobile phase effect
topic Adsorption Isotherms
Benzophenones
Frontal Analysis
Henry's constant
Mobile phase effect
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Linear adsorption isotherms were registered by a frontal analysis method for four substituted benzophenones (BPs) using a liquid chromatography Luna C18(2) column as adsorbent. The isotherm data points were measured at different mobile-phase compositions of methanol−water, varying the methanol volume fraction from 0.4 to 0.6 with a step of 0.05 and keeping the temperature at 30 °C. Henry’s constants were obtained from the analysis of experimental data for each mobile-phase composition. The substituent effect on Henry’s constant was evaluated, and it was found that the hydrogen-bond acceptor ability of the p-substituent, the interactions of the carbonyl group with the polar mobile phase molecules, and the molecular volume are key aspects governing the adsorption process of the studied BPs. In addition, the effect of the mobile-phase composition was analyzed by applying two different models to predict the Henry’s constants and compare them to the experimental values. It was found that the Snyder model is the most suitable to describe the variation of the mentioned constant with the volume fraction of methanol in the mobile phase.
Fil: Sancho, Matias Israel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto Multidisciplinario de Investigaciones Biológicas de San Luis. Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Instituto Multidisciplinario de Investigaciones Biológicas de San Luis; Argentina
Fil: Blanco, Sonia Encarnacion. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto Multidisciplinario de Investigaciones Biológicas de San Luis. Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Instituto Multidisciplinario de Investigaciones Biológicas de San Luis; Argentina
Fil: Castro, Eduardo Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
description Linear adsorption isotherms were registered by a frontal analysis method for four substituted benzophenones (BPs) using a liquid chromatography Luna C18(2) column as adsorbent. The isotherm data points were measured at different mobile-phase compositions of methanol−water, varying the methanol volume fraction from 0.4 to 0.6 with a step of 0.05 and keeping the temperature at 30 °C. Henry’s constants were obtained from the analysis of experimental data for each mobile-phase composition. The substituent effect on Henry’s constant was evaluated, and it was found that the hydrogen-bond acceptor ability of the p-substituent, the interactions of the carbonyl group with the polar mobile phase molecules, and the molecular volume are key aspects governing the adsorption process of the studied BPs. In addition, the effect of the mobile-phase composition was analyzed by applying two different models to predict the Henry’s constants and compare them to the experimental values. It was found that the Snyder model is the most suitable to describe the variation of the mentioned constant with the volume fraction of methanol in the mobile phase.
publishDate 2010
dc.date.none.fl_str_mv 2010-11
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/11336/278385
Sancho, Matias Israel; Blanco, Sonia Encarnacion; Castro, Eduardo Alberto; Adsorption Isotherms of Substituted Benzophenones on a Reverse-Phase Liquid Chromatography System: Effect of the Mobile-Phase Composition; American Chemical Society; Journal of Chemical and Engineering Data; 55; 11; 11-2010; 4768-4774
0021-9568
CONICET Digital
CONICET
url http://hdl.handle.net/11336/278385
identifier_str_mv Sancho, Matias Israel; Blanco, Sonia Encarnacion; Castro, Eduardo Alberto; Adsorption Isotherms of Substituted Benzophenones on a Reverse-Phase Liquid Chromatography System: Effect of the Mobile-Phase Composition; American Chemical Society; Journal of Chemical and Engineering Data; 55; 11; 11-2010; 4768-4774
0021-9568
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/je1003912
info:eu-repo/semantics/altIdentifier/doi/10.1021/je1003912
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
dc.publisher.none.fl_str_mv American Chemical Society
publisher.none.fl_str_mv American Chemical Society
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 12.747614

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