Integration of a sensitive carbon nanotube composite electrode in a ceramic microanalyzer for the amperometric determination of free chlorine

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dc.contributor.author Olivé Monllau, Rosa
dc.contributor.author Martínez Cisneros, Cynthia Susana
dc.contributor.author Bartrolí, Jordi
dc.contributor.author Baeza, Mireia
dc.contributor.author Céspedes, Francisco
dc.date.accessioned 2018-04-24T07:59:12Z
dc.date.available 2018-04-24T07:59:12Z
dc.date.issued 2011-01-28
dc.identifier.bibliographicCitation Olivé-Monllau, R., Martínez-Cisneros, C.S., Bartrolí, J., Baeza, M., Céspedes, F. (2011). Integration of a sensitive carbon nanotube composite electrode in a ceramic microanalyzer for the amperometric determination of free chlorine. Sensors and Actuators B: Chemical, 151(2), pp. 416-422.
dc.identifier.issn 0925-4005
dc.identifier.uri http://hdl.handle.net/10016/26716
dc.description.abstract In this paper we report a green tape ceramic microfluidic analyzer that integrates a complete amperometric detection system based on a highly sensitive carbon nanotube composite electrode. As a proof of the integration concept, reference and counter electrodes were embedded into the microanalyzer body during the fabrication process.In order to increase the system functionality, and taking advantage of the surface renewability associated to composite electrodes, the working electrode was integrated in an exchangeable configuration. The microanalyzer was automated by means of the multicommutation technique, which allowed its autocalibration by the on-line preparation of standard solutions from a unique stock solution. The system was applied to the analysis of free chlorine in water samples. A noticeable low detection limit (0.05 mg L-1) and a high-term stability were observed. To demonstrate the potentiality of thisapproach, in terms of analytical performance, it was also applied to the analysis of real samples obtained from a public swimming pool. The system characteristics make it ideal for unattended applications where the minimum user interaction and the maximum analyzer autonomy are required.
dc.description.sponsorship This work was partly supported by the Spanish MICINN project CTQ2009-13873 (BQU subprogram). R. Olivé-Monllau thanks Universitat Autònoma de Barcelona (UAB) for the award of PIF studentship.
dc.format.extent 31
dc.format.mimetype application/pdf
dc.language.iso eng
dc.publisher Elsevier
dc.rights © Elsevier
dc.rights Atribución-NoComercial-SinDerivadas 3.0 España
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subject.other carbon nanotube composite
dc.subject.other amperometric sensor
dc.subject.other chlorine
dc.subject.other microanalyzer
dc.subject.other green tape ceramics
dc.title Integration of a sensitive carbon nanotube composite electrode in a ceramic microanalyzer for the amperometric determination of free chlorine
dc.type article
dc.subject.eciencia Materiales
dc.subject.eciencia Química
dc.identifier.doi https://doi.org/10.1016/j.snb.2010.10.017
dc.rights.accessRights openAccess
dc.relation.projectID Gobierno de España. CTQ2009-13873
dc.type.version acceptedVersion
dc.identifier.publicationfirstpage 416
dc.identifier.publicationissue 2
dc.identifier.publicationlastpage 422
dc.identifier.publicationtitle Sensors and actuators. B, Chemical
dc.identifier.publicationvolume 151
dc.identifier.uxxi AR/0000021112
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