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Carbon‐Based Electrodes for Sensitive Electroanalytical Determination of Aminonaphthalenes |
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| Authors: | Jaroslava Zavazalova Mariana Emilia Ghica Karolina Schwarzova‐Peckova Jiri Barek Christopher M. A. Brett |
| Affiliation: | 1. Charles University in Prague, Faculty of Science, University Research Centre UNCE “Supramolecular Chemistry”, Department of Analytical Chemistry, UNESCO Laboratory of Environmental Electrochemistry, Albertov 6, CZ‐12843, Prague 2, Czech Republic;2. University of Coimbra, Faculty of Science and Technology, Department of Chemistry, Rua Larga, 3004‐535 Coimbra, Portugal |
| Abstract: | The electroanalytical performance of bare glassy carbon electrodes (GCE) for the determination of 1‐aminonaphthalene (1‐AN) and 2‐aminonaphthalene (2‐AN) was compared with GCE modified by a Nafion permselective membrane or multiwalled carbon nanotubes and with other types of carbon‐based materials, carbon film and boron doped diamond. Nafion‐modified GCE gave the highest sensitivity and lowest detection limit (0.4 µmol L?1) for differential pulse voltammetric determination of 1‐AN. Electrochemical impedance spectroscopy gave information about the processes at the electrode surface. Simultaneous determination of 1‐AN and 2‐AN in a mixture at GCE and their determination in model samples of river water is presented. |
| Keywords: | Aminonaphthalenes Carbon electrode materials Nafion Multiwalled carbon nanotubes Differential pulse voltammetry Electrochemical impedance spectroscopy |