Carbon Nanotubes Paste Electrodes as new Detectors for Capillary Electrophoresis

Autores
Chicharro, Manuel; Sánchez, Alberto; Bermejo, Esperanza; Zapardiel, Antonio; Rubianes, María Dolores; Rivas, Gustavo Adolfo
Año de publicación
2005
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Carbon nanotubes paste electrodes (CNTPE) prepared with short (1–5 μm length) and long carbon nanotubes (5–20 μm length) of 20–50 nm diameter have demonstrated to be highly useful as detectors in flow injection analysis and capillary electrophoresis. Compared to the classical graphite paste electrode, CNTPE improved the detection limits of dopac, ascorbic acid, dopamine, norepinephrine and epinephrine. The content of agglutinant has shown to be an important variable in the preparation of these carbon nanotubes composites. Even when no substantial differences were observed between the electrodes, those prepared with long carbon nanotubes (55.0%, w/w) and mineral oil (45.0%, w/w) have allowed us to obtain less noisy and more reproducible signals. In this article we also report the successful use of a new electrochemical cell for the detection in capillary electrophoresis that allows an easier handling and more reproducible responses. Therefore, the combination of the carbon nanotubes electrocatalytic activity with the known advantages of composite materials, the efficiency of the new electrochemical cell and the excellent separative properties of capillary electrophoresis represents a very important alternative for new electroanalytical challenges.
Fil: Chicharro, Manuel. Universidad Autónoma de Madrid; España
Fil: Sánchez, Alberto. Universidad Autónoma de Madrid; España
Fil: Bermejo, Esperanza. Universidad Autónoma de Madrid; España
Fil: Zapardiel, Antonio. Universidad Nacional de Educacion a Distancia; España
Fil: Rubianes, María Dolores. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Rivas, Gustavo Adolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Materia
Carbon Nanotubes
Paste Electrodes
Dopamine
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:11336/32934
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Carbon Nanotubes Paste Electrodes as new Detectors for Capillary ElectrophoresisChicharro, ManuelSánchez, AlbertoBermejo, EsperanzaZapardiel, AntonioRubianes, María DoloresRivas, Gustavo AdolfoCarbon NanotubesPaste ElectrodesDopaminehttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Carbon nanotubes paste electrodes (CNTPE) prepared with short (1–5 μm length) and long carbon nanotubes (5–20 μm length) of 20–50 nm diameter have demonstrated to be highly useful as detectors in flow injection analysis and capillary electrophoresis. Compared to the classical graphite paste electrode, CNTPE improved the detection limits of dopac, ascorbic acid, dopamine, norepinephrine and epinephrine. The content of agglutinant has shown to be an important variable in the preparation of these carbon nanotubes composites. Even when no substantial differences were observed between the electrodes, those prepared with long carbon nanotubes (55.0%, w/w) and mineral oil (45.0%, w/w) have allowed us to obtain less noisy and more reproducible signals. In this article we also report the successful use of a new electrochemical cell for the detection in capillary electrophoresis that allows an easier handling and more reproducible responses. Therefore, the combination of the carbon nanotubes electrocatalytic activity with the known advantages of composite materials, the efficiency of the new electrochemical cell and the excellent separative properties of capillary electrophoresis represents a very important alternative for new electroanalytical challenges.Fil: Chicharro, Manuel. Universidad Autónoma de Madrid; EspañaFil: Sánchez, Alberto. Universidad Autónoma de Madrid; EspañaFil: Bermejo, Esperanza. Universidad Autónoma de Madrid; EspañaFil: Zapardiel, Antonio. Universidad Nacional de Educacion a Distancia; EspañaFil: Rubianes, María Dolores. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; ArgentinaFil: Rivas, Gustavo Adolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; ArgentinaElsevier Science2005-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/32934Chicharro, Manuel; Rivas, Gustavo Adolfo; Bermejo, Esperanza; Zapardiel, Antonio; Sánchez, Alberto; Rubianes, María Dolores; et al.; Carbon Nanotubes Paste Electrodes as new Detectors for Capillary Electrophoresis; Elsevier Science; Analytica Chimica Acta; 543; 1-2; 7-2005; 84-910003-2670CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0003267005006562info:eu-repo/semantics/altIdentifier/doi/10.1016/j.aca.2005.04.031info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:58:05Zoai:ri.conicet.gov.ar:11336/32934instacron: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:34982025-10-15 14:58:06.283CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Carbon Nanotubes Paste Electrodes as new Detectors for Capillary Electrophoresis
title Carbon Nanotubes Paste Electrodes as new Detectors for Capillary Electrophoresis
spellingShingle Carbon Nanotubes Paste Electrodes as new Detectors for Capillary Electrophoresis
Chicharro, Manuel
Carbon Nanotubes
Paste Electrodes
Dopamine
title_short Carbon Nanotubes Paste Electrodes as new Detectors for Capillary Electrophoresis
title_full Carbon Nanotubes Paste Electrodes as new Detectors for Capillary Electrophoresis
title_fullStr Carbon Nanotubes Paste Electrodes as new Detectors for Capillary Electrophoresis
title_full_unstemmed Carbon Nanotubes Paste Electrodes as new Detectors for Capillary Electrophoresis
title_sort Carbon Nanotubes Paste Electrodes as new Detectors for Capillary Electrophoresis
dc.creator.none.fl_str_mv Chicharro, Manuel
Sánchez, Alberto
Bermejo, Esperanza
Zapardiel, Antonio
Rubianes, María Dolores
Rivas, Gustavo Adolfo
author Chicharro, Manuel
author_facet Chicharro, Manuel
Sánchez, Alberto
Bermejo, Esperanza
Zapardiel, Antonio
Rubianes, María Dolores
Rivas, Gustavo Adolfo
author_role author
author2 Sánchez, Alberto
Bermejo, Esperanza
Zapardiel, Antonio
Rubianes, María Dolores
Rivas, Gustavo Adolfo
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Carbon Nanotubes
Paste Electrodes
Dopamine
topic Carbon Nanotubes
Paste Electrodes
Dopamine
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Carbon nanotubes paste electrodes (CNTPE) prepared with short (1–5 μm length) and long carbon nanotubes (5–20 μm length) of 20–50 nm diameter have demonstrated to be highly useful as detectors in flow injection analysis and capillary electrophoresis. Compared to the classical graphite paste electrode, CNTPE improved the detection limits of dopac, ascorbic acid, dopamine, norepinephrine and epinephrine. The content of agglutinant has shown to be an important variable in the preparation of these carbon nanotubes composites. Even when no substantial differences were observed between the electrodes, those prepared with long carbon nanotubes (55.0%, w/w) and mineral oil (45.0%, w/w) have allowed us to obtain less noisy and more reproducible signals. In this article we also report the successful use of a new electrochemical cell for the detection in capillary electrophoresis that allows an easier handling and more reproducible responses. Therefore, the combination of the carbon nanotubes electrocatalytic activity with the known advantages of composite materials, the efficiency of the new electrochemical cell and the excellent separative properties of capillary electrophoresis represents a very important alternative for new electroanalytical challenges.
Fil: Chicharro, Manuel. Universidad Autónoma de Madrid; España
Fil: Sánchez, Alberto. Universidad Autónoma de Madrid; España
Fil: Bermejo, Esperanza. Universidad Autónoma de Madrid; España
Fil: Zapardiel, Antonio. Universidad Nacional de Educacion a Distancia; España
Fil: Rubianes, María Dolores. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Rivas, Gustavo Adolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
description Carbon nanotubes paste electrodes (CNTPE) prepared with short (1–5 μm length) and long carbon nanotubes (5–20 μm length) of 20–50 nm diameter have demonstrated to be highly useful as detectors in flow injection analysis and capillary electrophoresis. Compared to the classical graphite paste electrode, CNTPE improved the detection limits of dopac, ascorbic acid, dopamine, norepinephrine and epinephrine. The content of agglutinant has shown to be an important variable in the preparation of these carbon nanotubes composites. Even when no substantial differences were observed between the electrodes, those prepared with long carbon nanotubes (55.0%, w/w) and mineral oil (45.0%, w/w) have allowed us to obtain less noisy and more reproducible signals. In this article we also report the successful use of a new electrochemical cell for the detection in capillary electrophoresis that allows an easier handling and more reproducible responses. Therefore, the combination of the carbon nanotubes electrocatalytic activity with the known advantages of composite materials, the efficiency of the new electrochemical cell and the excellent separative properties of capillary electrophoresis represents a very important alternative for new electroanalytical challenges.
publishDate 2005
dc.date.none.fl_str_mv 2005-07
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/11336/32934
Chicharro, Manuel; Rivas, Gustavo Adolfo; Bermejo, Esperanza; Zapardiel, Antonio; Sánchez, Alberto; Rubianes, María Dolores; et al.; Carbon Nanotubes Paste Electrodes as new Detectors for Capillary Electrophoresis; Elsevier Science; Analytica Chimica Acta; 543; 1-2; 7-2005; 84-91
0003-2670
CONICET Digital
CONICET
url http://hdl.handle.net/11336/32934
identifier_str_mv Chicharro, Manuel; Rivas, Gustavo Adolfo; Bermejo, Esperanza; Zapardiel, Antonio; Sánchez, Alberto; Rubianes, María Dolores; et al.; Carbon Nanotubes Paste Electrodes as new Detectors for Capillary Electrophoresis; Elsevier Science; Analytica Chimica Acta; 543; 1-2; 7-2005; 84-91
0003-2670
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://www.sciencedirect.com/science/article/pii/S0003267005006562
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.aca.2005.04.031
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 Elsevier Science
publisher.none.fl_str_mv 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 13.22299

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