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Glyphosate Detection by Means of a Voltammetric Electronic Tongue and Discrimination of Potential Interferents

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Glyphosate Detection by Means of a Voltammetric Electronic Tongue and Discrimination of Potential Interferents

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dc.contributor.author Bataller Prats, Román es_ES
dc.contributor.author Campos Sánchez, Inmaculada es_ES
dc.contributor.author Laguarda Miró, Nicolás es_ES
dc.contributor.author Alcañiz Fillol, Miguel es_ES
dc.contributor.author Soto Camino, Juan es_ES
dc.contributor.author Martínez Mañez, Ramón es_ES
dc.contributor.author Gil Sánchez, Luís es_ES
dc.contributor.author García Breijo, Eduardo es_ES
dc.contributor.author Ibáñez Civera, Francisco Javier es_ES
dc.date.accessioned 2013-05-14T08:48:06Z
dc.date.available 2013-05-14T08:48:06Z
dc.date.issued 2012
dc.identifier.issn 1424-8220
dc.identifier.uri http://hdl.handle.net/10251/28813
dc.description.abstract A new electronic tongue to monitor the presence of glyphosate (a non-selective systemic herbicide) has been developed. It is based on pulse voltammetry and consists in an array of three working electrodes (Pt, Co and Cu) encapsulated on a methacrylate cylinder. The electrochemical response of the sensing array was characteristic of the presence of glyphosate in buffered water (phosphate buffer 0.1 mol·dm-3, pH 6.7). Rotating disc electrode (RDE) studies were carried out with Pt, Co and Cu electrodes in water at room temperature and at pH 6.7 using 0.1 mol·dm-3 of phosphate as a buffer. In the presence of glyphosate, the corrosion current of the Cu and Co electrodes increased significantly, probably due to the formation of Cu2+ or Co2+ complexes. The pulse array waveform for the voltammetric tongue was designed by taking into account some of the redox processes observed in the electrochemical studies. The PCA statistical analysis required four dimensions to explain 95% of variance. Moreover, a two-dimensional representation of the two principal components differentiated the water mixtures containing glyphosate. Furthermore, the PLS statistical analyses allowed the creation of a model to correlate the electrochemical response of the electrodes with glyphosate concentrations, even in the presence of potential interferents such as humic acids and Ca2+. The system offers a PLS prediction model for glyphosate detection with values of 098, -2.3 ¿ 10-5 and 0.94 for the slope, the intercept and the regression coefficient, respectively, which is in agreement with the good fit between the predicted and measured concentrations. The results suggest the feasibility of this system to help develop electronic tongues for glyphosate detection. © 2012 by the authors; licensee MDPI, Basel, Switzerland. es_ES
dc.description.sponsorship Financial support from the Spanish Government (Project MAT2009-14564-C04-01 and PCI-Mediterraneo A/024590/09/A/ 03044/10), the Generalitat Valenciana (Project PROMETEO/2009/016), the UPV (project PAID-05-10) and its Centre de Cooperacio al Desenvolupament (Programa ADSIDEO-COOPERACIO 2010) is gratefully acknowledged. en_EN
dc.language Inglés es_ES
dc.publisher MDPI es_ES
dc.relation.ispartof Sensors es_ES
dc.rights Reconocimiento (by) es_ES
dc.subject Electronic tongue es_ES
dc.subject Glyphosate es_ES
dc.subject PLS es_ES
dc.subject Rotating disk electrodes es_ES
dc.subject.classification INGENIERIA QUIMICA es_ES
dc.subject.classification QUIMICA ANALITICA es_ES
dc.subject.classification QUIMICA INORGANICA es_ES
dc.subject.classification TECNOLOGIA ELECTRONICA es_ES
dc.title Glyphosate Detection by Means of a Voltammetric Electronic Tongue and Discrimination of Potential Interferents es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.3390/s121217553
dc.relation.projectID info:eu-repo/grantAgreement/MICINN//MAT2009-14564-C04-01/ES/Nanomateriales Hibridos Para El Desarrollo De \"Puertas Moleculares\" De Aplicacion En Procesos De Reconocimiento Y Terapeutica Y Para La Deteccion De Explosivos/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/Generalitat Valenciana//PROMETEO09%2F2009%2F016/ES/Ayuda prometeo 2009 para el grupo de diseño y desarrollo de sensores/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/UPV//PAID-05-10/ es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Química - Departament de Química es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Electrónica - Departament d'Enginyeria Electrònica es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Química y Nuclear - Departament d'Enginyeria Química i Nuclear es_ES
dc.description.bibliographicCitation Bataller Prats, R.; Campos Sánchez, I.; Laguarda Miró, N.; Alcañiz Fillol, M.; Soto Camino, J.; Martínez Mañez, R.; Gil Sánchez, L.... (2012). Glyphosate Detection by Means of a Voltammetric Electronic Tongue and Discrimination of Potential Interferents. Sensors. 12:17553-17568. https://doi.org/10.3390/s121217553 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://dx.doi.org/10.3390/s121217553 es_ES
dc.description.upvformatpinicio 17553 es_ES
dc.description.upvformatpfin 17568 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 12 es_ES
dc.relation.senia 231421
dc.identifier.pmid 23250277 en_EN
dc.identifier.pmcid PMC3571853 en_EN
dc.contributor.funder Generalitat Valenciana es_ES
dc.contributor.funder Ministerio de Ciencia e Innovación
dc.contributor.funder Universitat Politècnica de València
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