Novel electrode materials have been developed and applied to the determination of chloramines by amperometric methods. In particular, a thin layer of a conducting polymer, namely poly(3,4-ethylenedioxythiophene) (PEDOT) has been tested for the first time in the presence of chloramines. Significant improvements in the performance of the modified electrodes are obtained by using composite materials based on differently encapsulated Au nanoparti-cles and PEDOT. The resulting electrode system exhibits repeatability and reproducibility of the voltammetric re-sponses, as well as low limit of detection and high sensitivity in the determination of monochloramine, as testified by the cyclic voltammetric curves and the calibration plots obtained by a rotating disk electrode.
Electroreduction of chloramines through novel electrode materials / Terzi, Fabio; Zanfrognini, Barbara; Zanardi, Chiara; Pigani, Laura; Seeber, Renato. - In: ELECTROANALYSIS. - ISSN 1040-0397. - ELETTRONICO. - 24:4(2012), pp. 833-841. [10.1002/elan.201100554]
Electroreduction of chloramines through novel electrode materials
TERZI, Fabio;ZANFROGNINI, Barbara;ZANARDI, Chiara;PIGANI, Laura;SEEBER, Renato
2012
Abstract
Novel electrode materials have been developed and applied to the determination of chloramines by amperometric methods. In particular, a thin layer of a conducting polymer, namely poly(3,4-ethylenedioxythiophene) (PEDOT) has been tested for the first time in the presence of chloramines. Significant improvements in the performance of the modified electrodes are obtained by using composite materials based on differently encapsulated Au nanoparti-cles and PEDOT. The resulting electrode system exhibits repeatability and reproducibility of the voltammetric re-sponses, as well as low limit of detection and high sensitivity in the determination of monochloramine, as testified by the cyclic voltammetric curves and the calibration plots obtained by a rotating disk electrode.File | Dimensione | Formato | |
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