Simultaneous determination of hydroquinone, catechol and resorcinol by voltammetry using graphene screen-printed electrodes and partial least squares calibration

Catechol (CC), resorcinol (RC) and hydroquinone (HQ) are dihydroxybenzene isomers that usually coexist in different samples and can be determined using voltammetric techniques taking profit of their fast response, high sensitivity and selectivity, cheap instrumentation, simple and timesaving operati...

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Autores: Aragó, Miriam, Ariño Blasco, Cristina, Dago Busquets, Àngela, Díaz Cruz, José Manuel, Esteban i Cortada, Miquel
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2016
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/139341
Acceso en línea:https://hdl.handle.net/2445/139341
Access Level:acceso abierto
Palabra clave:Voltametria
Voltammetry
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spelling Simultaneous determination of hydroquinone, catechol and resorcinol by voltammetry using graphene screen-printed electrodes and partial least squares calibration Aragó, Miriam Ariño Blasco, Cristina Dago Busquets, Àngela Díaz Cruz, José Manuel Esteban i Cortada, Miquel Voltametria Voltammetry Catechol (CC), resorcinol (RC) and hydroquinone (HQ) are dihydroxybenzene isomers that usually coexist in different samples and can be determined using voltammetric techniques taking profit of their fast response, high sensitivity and selectivity, cheap instrumentation, simple and timesaving operation modes. However, a strong overlapping of CC and HQ signals is observed hindering their accurate analysis. In the present work, the combination of differential pulse voltammetry with graphene screen-printed electrodes (allowing detection limits of 2.7, 1.7 and 2.4 μmol L-1 for HQ, CC and RC respectively) and the data analysis by partial least squares calibration (giving root mean square errors of prediction, RMSEP values, of 2.6, 4.1 and 2.3 for HQ, CC and RC respectively) has been proposed as a powerful tool for the quantification of mixtures of these dihydroxybenzene isomers. The commercial availability of the screen-printed devices and the low cost and simplicity of the analysis suggest that the proposed method can be a valuable alternative to chromatographic and electrophoretic methods for the considered species. The method has been applied to the analysis of these isomers in spiked tap water. Elsevier B.V. https://hdl.handle.net/2445/139341
title Simultaneous determination of hydroquinone, catechol and resorcinol by voltammetry using graphene screen-printed electrodes and partial least squares calibration
spellingShingle Simultaneous determination of hydroquinone, catechol and resorcinol by voltammetry using graphene screen-printed electrodes and partial least squares calibration
Aragó, Miriam
Voltametria
Voltammetry
title_short Simultaneous determination of hydroquinone, catechol and resorcinol by voltammetry using graphene screen-printed electrodes and partial least squares calibration
title_full Simultaneous determination of hydroquinone, catechol and resorcinol by voltammetry using graphene screen-printed electrodes and partial least squares calibration
title_fullStr Simultaneous determination of hydroquinone, catechol and resorcinol by voltammetry using graphene screen-printed electrodes and partial least squares calibration
title_full_unstemmed Simultaneous determination of hydroquinone, catechol and resorcinol by voltammetry using graphene screen-printed electrodes and partial least squares calibration
title_sort Simultaneous determination of hydroquinone, catechol and resorcinol by voltammetry using graphene screen-printed electrodes and partial least squares calibration
author Aragó, Miriam
author_facet Aragó, Miriam
Ariño Blasco, Cristina
Dago Busquets, Àngela
Díaz Cruz, José Manuel
Esteban i Cortada, Miquel
author_role author
author2 Ariño Blasco, Cristina
Dago Busquets, Àngela
Díaz Cruz, José Manuel
Esteban i Cortada, Miquel
author2_role author
author
author
author
topic Voltametria
Voltammetry
topic_facet Voltametria
Voltammetry
description Catechol (CC), resorcinol (RC) and hydroquinone (HQ) are dihydroxybenzene isomers that usually coexist in different samples and can be determined using voltammetric techniques taking profit of their fast response, high sensitivity and selectivity, cheap instrumentation, simple and timesaving operation modes. However, a strong overlapping of CC and HQ signals is observed hindering their accurate analysis. In the present work, the combination of differential pulse voltammetry with graphene screen-printed electrodes (allowing detection limits of 2.7, 1.7 and 2.4 μmol L-1 for HQ, CC and RC respectively) and the data analysis by partial least squares calibration (giving root mean square errors of prediction, RMSEP values, of 2.6, 4.1 and 2.3 for HQ, CC and RC respectively) has been proposed as a powerful tool for the quantification of mixtures of these dihydroxybenzene isomers. The commercial availability of the screen-printed devices and the low cost and simplicity of the analysis suggest that the proposed method can be a valuable alternative to chromatographic and electrophoretic methods for the considered species. The method has been applied to the analysis of these isomers in spiked tap water.
publishDate 2016
format article
status_str acceptedVersion
url https://hdl.handle.net/2445/139341
eu_rights_str_mv openAccess
publisher Elsevier B.V.
institution Universidad de Barcelona
collection Dipòsit Digital de la UB
reponame_str Dipòsit Digital de la UB
instname_str Universidad de Barcelona
_version_ 1878440872508391424
publishDateSort 2016
author_browse Aragó, Miriam
Ariño Blasco, Cristina
Dago Busquets, Àngela
Díaz Cruz, José Manuel
Esteban i Cortada, Miquel
publisherStr Elsevier B.V.
score 6,9303427

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