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dc.contributor.author
Gomez, Federico Jose Vicente
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Martin, Aida
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Silva, María Fernanda
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Escarpa, Alberto
dc.date.available
2017-08-23T18:49:00Z
dc.date.issued
2015-05-26
dc.identifier.citation
Gomez, Federico Jose Vicente; Martin, Aida; Silva, María Fernanda; Escarpa, Alberto; Screen-printed electrodes modified with carbon nanotubes or graphene for simultaneous determination of melatonin and serotonin; Springer Wien; Mikrochimica Acta; 182; 11-12; 26-5-2015; 1925-1931
dc.identifier.issn
0026-3672
dc.identifier.uri
http://hdl.handle.net/11336/22872
dc.description.abstract
Single-walled carbon nanotubes (SWCNT), multi-walled carbon nanotubes (MWCNT) and graphene have been tested as carbon allotropes for the modification of carbon screen-printed electrodes (CSPEs) to simultaneously determine melatonin (MT) and serotonin (5-HT). Two groups of CSPEs, both 4 mm in diameter, were explored: The first includes commercial SWCNT, MWCNT and graphene, the second includes SWCNT, MWCNT, graphene oxide nanoribbons and reduced nanoribbons that were drop casted on the electrodes. The carbon nanomaterials enhanced the electroactive area in the following order: CSPE <MWCNTs <SWCNTs <graphene. This allowed the simultaneous determination of 5-HT and MT at the working potentials of +50 mV and +390 mV (vs. Ag), respectively. The use of carbon nanomaterials, in particular of graphene oxide nanoribbons on CSPEs, represents an excellent and disposable tool for sensing the two target molecules in even small sample volumes. Figures of merit for MT and 5-HT include (a) detection limit of 1.1 and 0.4 μM for MT and 5-HT, respectively; (b) an inter-electrode reproducibility with RSD ≤ 8 %; (c) 120 s response time, and (d) recoveries (in case of spiked samples) ranging from 94 to 103 % (with an RSD < 1 %).
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer Wien
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Screen-Printed Electrode
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Carbon Nanomaterials
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Single Andmulti-Walled Carbon Nanotubes
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Graphene
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Otras Ciencias Químicas
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Ciencias Químicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Screen-printed electrodes modified with carbon nanotubes or graphene for simultaneous determination of melatonin and serotonin
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-07-13T17:54:03Z
dc.journal.volume
182
dc.journal.number
11-12
dc.journal.pagination
1925-1931
dc.journal.pais
Austria
dc.journal.ciudad
Viena
dc.description.fil
Fil: Gomez, Federico Jose Vicente. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Biología Agrícola de Mendoza. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Instituto de Biología Agrícola de Mendoza; Argentina. Universidad de Alcalá. Facultad de Química. Departamento de Química Analítica, Química Física e Ingeniería Química; España
dc.description.fil
Fil: Martin, Aida. Universidad de Alcalá. Facultad de Química. Departamento de Química Analítica, Química Física e Ingeniería Química; España
dc.description.fil
Fil: Silva, María Fernanda. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Biología Agrícola de Mendoza. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Instituto de Biología Agrícola de Mendoza; Argentina
dc.description.fil
Fil: Escarpa, Alberto. Universidad de Alcalá. Facultad de Química. Departamento de Química Analítica, Química Física e Ingeniería Química; España
dc.journal.title
Mikrochimica Acta
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs00604-015-1520-x
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info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s00604-015-1520-x
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