Improving peak capacity in fast online comprehensive two-dimensional liquid chromatography with post-first-dimension flow splitting

Autores
Filgueira, Marcelo R.; Huang, Yuan; Witt, Klaus; Castells, Cecilia Beatriz Marta; Carr, Peter W.
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The use of flow splitters between the two dimensions in online comprehensive two-dimensional (2D) liquid chromatography (LC × LC) has not received very much attention, in comparison with their use in 2D gas chromatography (GC × GC), where they are quite common. In principle, splitting the flow after the first dimension column and performing online LC × LC on this constant fraction of the first dimension effluent should allow the two dimensions to be optimized almost independently. When there is no flow splitting, any change in the first-dimension flow rate has an immediate impact on the second dimension. With a flow splitter, one could, for example, double the flow rate into the first dimension column and perform a 1:1 flow split without changing the sample loop size or the sampler's collection time. Of course, the sensitivity would be diminished, but this can be partially compensated through the use of a larger injection; this will likely only amount to a small price to pay for this increased resolving power and system flexibility. Among other benefits, we found a 2-fold increase in the corrected 2D peak capacity and the number of observed peaks for a 15-min analysis time, using a post-first-dimension flow splitter. At a fixed analysis time, this improvement results primarily from an increase in the gradient time, resulting from the reduced system re-equilibration time, and, to a smaller extent, it is due to the increased peak capacity achieved by full optimization of the first dimension.
Fil: Filgueira, Marcelo R.. Universidad Nacional de La Plata. Facultad de Ciencias Exactas; Argentina. University of Minnesota; Estados Unidos
Fil: Huang, Yuan. University of Minnesota; Estados Unidos
Fil: Witt, Klaus. Agilent Technologies Deutschland; Alemania
Fil: Castells, Cecilia Beatriz Marta. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones en Tecnología de Pinturas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones en Tecnología de Pinturas; Argentina
Fil: Carr, Peter W.. University of Minnesota; Estados Unidos
Materia
Two dimensional LC
Peak capacity
Fast Gradient
Flow Splitting
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:11336/95499

id CONICETDig_17e7aa90c195cb9352230ce1be1973f6
oai_identifier_str oai:ri.conicet.gov.ar:11336/95499
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Improving peak capacity in fast online comprehensive two-dimensional liquid chromatography with post-first-dimension flow splittingFilgueira, Marcelo R.Huang, YuanWitt, KlausCastells, Cecilia Beatriz MartaCarr, Peter W.Two dimensional LCPeak capacityFast GradientFlow Splittinghttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The use of flow splitters between the two dimensions in online comprehensive two-dimensional (2D) liquid chromatography (LC × LC) has not received very much attention, in comparison with their use in 2D gas chromatography (GC × GC), where they are quite common. In principle, splitting the flow after the first dimension column and performing online LC × LC on this constant fraction of the first dimension effluent should allow the two dimensions to be optimized almost independently. When there is no flow splitting, any change in the first-dimension flow rate has an immediate impact on the second dimension. With a flow splitter, one could, for example, double the flow rate into the first dimension column and perform a 1:1 flow split without changing the sample loop size or the sampler's collection time. Of course, the sensitivity would be diminished, but this can be partially compensated through the use of a larger injection; this will likely only amount to a small price to pay for this increased resolving power and system flexibility. Among other benefits, we found a 2-fold increase in the corrected 2D peak capacity and the number of observed peaks for a 15-min analysis time, using a post-first-dimension flow splitter. At a fixed analysis time, this improvement results primarily from an increase in the gradient time, resulting from the reduced system re-equilibration time, and, to a smaller extent, it is due to the increased peak capacity achieved by full optimization of the first dimension.Fil: Filgueira, Marcelo R.. Universidad Nacional de La Plata. Facultad de Ciencias Exactas; Argentina. University of Minnesota; Estados UnidosFil: Huang, Yuan. University of Minnesota; Estados UnidosFil: Witt, Klaus. Agilent Technologies Deutschland; AlemaniaFil: Castells, Cecilia Beatriz Marta. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones en Tecnología de Pinturas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones en Tecnología de Pinturas; ArgentinaFil: Carr, Peter W.. University of Minnesota; Estados UnidosAmerican Chemical Society2011-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/95499Filgueira, Marcelo R.; Huang, Yuan; Witt, Klaus; Castells, Cecilia Beatriz Marta; Carr, Peter W.; Improving peak capacity in fast online comprehensive two-dimensional liquid chromatography with post-first-dimension flow splitting; American Chemical Society; Analytical Chemistry; 83; 24; 12-2011; 9531-95390003-2700CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/ac202317minfo:eu-repo/semantics/altIdentifier/doi/10.1021/ac202317minfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:57:29Zoai:ri.conicet.gov.ar:11336/95499instacron: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 09:57:29.388CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Improving peak capacity in fast online comprehensive two-dimensional liquid chromatography with post-first-dimension flow splitting
title Improving peak capacity in fast online comprehensive two-dimensional liquid chromatography with post-first-dimension flow splitting
spellingShingle Improving peak capacity in fast online comprehensive two-dimensional liquid chromatography with post-first-dimension flow splitting
Filgueira, Marcelo R.
Two dimensional LC
Peak capacity
Fast Gradient
Flow Splitting
title_short Improving peak capacity in fast online comprehensive two-dimensional liquid chromatography with post-first-dimension flow splitting
title_full Improving peak capacity in fast online comprehensive two-dimensional liquid chromatography with post-first-dimension flow splitting
title_fullStr Improving peak capacity in fast online comprehensive two-dimensional liquid chromatography with post-first-dimension flow splitting
title_full_unstemmed Improving peak capacity in fast online comprehensive two-dimensional liquid chromatography with post-first-dimension flow splitting
title_sort Improving peak capacity in fast online comprehensive two-dimensional liquid chromatography with post-first-dimension flow splitting
dc.creator.none.fl_str_mv Filgueira, Marcelo R.
Huang, Yuan
Witt, Klaus
Castells, Cecilia Beatriz Marta
Carr, Peter W.
author Filgueira, Marcelo R.
author_facet Filgueira, Marcelo R.
Huang, Yuan
Witt, Klaus
Castells, Cecilia Beatriz Marta
Carr, Peter W.
author_role author
author2 Huang, Yuan
Witt, Klaus
Castells, Cecilia Beatriz Marta
Carr, Peter W.
author2_role author
author
author
author
dc.subject.none.fl_str_mv Two dimensional LC
Peak capacity
Fast Gradient
Flow Splitting
topic Two dimensional LC
Peak capacity
Fast Gradient
Flow Splitting
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The use of flow splitters between the two dimensions in online comprehensive two-dimensional (2D) liquid chromatography (LC × LC) has not received very much attention, in comparison with their use in 2D gas chromatography (GC × GC), where they are quite common. In principle, splitting the flow after the first dimension column and performing online LC × LC on this constant fraction of the first dimension effluent should allow the two dimensions to be optimized almost independently. When there is no flow splitting, any change in the first-dimension flow rate has an immediate impact on the second dimension. With a flow splitter, one could, for example, double the flow rate into the first dimension column and perform a 1:1 flow split without changing the sample loop size or the sampler's collection time. Of course, the sensitivity would be diminished, but this can be partially compensated through the use of a larger injection; this will likely only amount to a small price to pay for this increased resolving power and system flexibility. Among other benefits, we found a 2-fold increase in the corrected 2D peak capacity and the number of observed peaks for a 15-min analysis time, using a post-first-dimension flow splitter. At a fixed analysis time, this improvement results primarily from an increase in the gradient time, resulting from the reduced system re-equilibration time, and, to a smaller extent, it is due to the increased peak capacity achieved by full optimization of the first dimension.
Fil: Filgueira, Marcelo R.. Universidad Nacional de La Plata. Facultad de Ciencias Exactas; Argentina. University of Minnesota; Estados Unidos
Fil: Huang, Yuan. University of Minnesota; Estados Unidos
Fil: Witt, Klaus. Agilent Technologies Deutschland; Alemania
Fil: Castells, Cecilia Beatriz Marta. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones en Tecnología de Pinturas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones en Tecnología de Pinturas; Argentina
Fil: Carr, Peter W.. University of Minnesota; Estados Unidos
description The use of flow splitters between the two dimensions in online comprehensive two-dimensional (2D) liquid chromatography (LC × LC) has not received very much attention, in comparison with their use in 2D gas chromatography (GC × GC), where they are quite common. In principle, splitting the flow after the first dimension column and performing online LC × LC on this constant fraction of the first dimension effluent should allow the two dimensions to be optimized almost independently. When there is no flow splitting, any change in the first-dimension flow rate has an immediate impact on the second dimension. With a flow splitter, one could, for example, double the flow rate into the first dimension column and perform a 1:1 flow split without changing the sample loop size or the sampler's collection time. Of course, the sensitivity would be diminished, but this can be partially compensated through the use of a larger injection; this will likely only amount to a small price to pay for this increased resolving power and system flexibility. Among other benefits, we found a 2-fold increase in the corrected 2D peak capacity and the number of observed peaks for a 15-min analysis time, using a post-first-dimension flow splitter. At a fixed analysis time, this improvement results primarily from an increase in the gradient time, resulting from the reduced system re-equilibration time, and, to a smaller extent, it is due to the increased peak capacity achieved by full optimization of the first dimension.
publishDate 2011
dc.date.none.fl_str_mv 2011-12
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/11336/95499
Filgueira, Marcelo R.; Huang, Yuan; Witt, Klaus; Castells, Cecilia Beatriz Marta; Carr, Peter W.; Improving peak capacity in fast online comprehensive two-dimensional liquid chromatography with post-first-dimension flow splitting; American Chemical Society; Analytical Chemistry; 83; 24; 12-2011; 9531-9539
0003-2700
CONICET Digital
CONICET
url http://hdl.handle.net/11336/95499
identifier_str_mv Filgueira, Marcelo R.; Huang, Yuan; Witt, Klaus; Castells, Cecilia Beatriz Marta; Carr, Peter W.; Improving peak capacity in fast online comprehensive two-dimensional liquid chromatography with post-first-dimension flow splitting; American Chemical Society; Analytical Chemistry; 83; 24; 12-2011; 9531-9539
0003-2700
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/ac202317m
info:eu-repo/semantics/altIdentifier/doi/10.1021/ac202317m
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
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
_version_ 1844613719496065024
score 13.070432