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...
| Authors: | ; ; ; ; |
|---|---|
| Format: | Article |
| Status: | Accepted version |
| Publication date: | 2016 |
| Country: | España |
| Institution: | Universidad de Barcelona |
| Repository: | Dipòsit Digital de la UB |
| OAI Identifier: | oai:diposit.ub.edu:2445/139341 |
| Online Access: | https://hdl.handle.net/2445/139341 |
| Access Level: | Open access |
| Keyword: | Voltametria Voltammetry |
| _version_ | 1878740064986464256 |
|---|---|
| author | Aragó, Miriam |
| author2 | Ariño Blasco, Cristina Dago Busquets, Àngela Díaz Cruz, José Manuel Esteban i Cortada, Miquel |
| author2_role | author author author author |
| author_browse | Aragó, Miriam Ariño Blasco, Cristina Dago Busquets, Àngela Díaz Cruz, José Manuel Esteban i Cortada, Miquel |
| author_facet | Aragó, Miriam Ariño Blasco, Cristina Dago Busquets, Àngela Díaz Cruz, José Manuel Esteban i Cortada, Miquel |
| author_role | author |
| collection | Dipòsit Digital de la UB |
| 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. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | ES_ccebc8048c8f9efbb29a3ea46227db81 |
| institution | Universidad de Barcelona |
| instname_str | Universidad de Barcelona |
| network_acronym_str | ES |
| network_name_str | España |
| oai_identifier_str | oai:diposit.ub.edu:2445/139341 |
| publishDate | 2016 |
| publishDateSort | 2016 |
| publisher | Elsevier B.V. |
| publisherStr | Elsevier B.V. |
| reponame_str | Dipòsit Digital de la UB |
| 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 |
| spellingShingle | Simultaneous determination of hydroquinone, catechol and resorcinol by voltammetry using graphene screen-printed electrodes and partial least squares calibration Aragó, Miriam Voltametria Voltammetry |
| status_str | acceptedVersion |
| title | 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_short | 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 |
| topic | Voltametria Voltammetry |
| topic_facet | Voltametria Voltammetry |
| url | https://hdl.handle.net/2445/139341 |