Szczegóły publikacji
Opis bibliograficzny
Microscopic and electrochemical characterization of lead film electrode applied in adsorptive stripping analysis / Andrzej BOBROWSKI, Kurt Kalcher, Katarzyna KUROWSKA // Electrochimica Acta : Journal of the International Society of Electrochemistry ; ISSN 0013-4686. — 2009 — vol. 54 iss. 28, s. 7214–7220. — Bibliogr. s. 7220, Abstr.
Autorzy (3)
- AGHBobrowski Andrzej
- Kalcher Kurt
- AGHKurowska Katarzyna
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 48180 |
|---|---|
| Data dodania do BaDAP | 2009-11-05 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.electacta.2009.07.052 |
| Rok publikacji | 2009 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Electrochimica Acta |
Abstract
Lead film electrodes (PbFEs) deposited in situ on glassy carbon or carbon paste supports have recently found application in adsorptive stripping voltammetric determination of inorganic ions and organic substances. In this work, the PbFE, prepared in ammonia buffer solutions, was investigated using scanning electron microscopy, atomic force microscopy and various voltammetric techniques. The microscopic images of the lead films deposited on the glassy carbon substrate showed a considerable variability in microstructure and compactness of the deposited layer depending on the selected experimental conditions, such as the concentration of Pb(II) species, the nucleation and deposition potential, and the time applied. The catalytic adsorptive systems of cobalt and nickel in a solution containing 0.1 ammonia buffer, 2.5 x 10(-5) M nioxime and 0.25 M NaNO2 were employed to investigate the electrochemical characteristics and utility of the in situ prepared lead films. The optimal parameters, i.e. the lead concentration in the solution, the procedure of film removal, and the time and potential of lead nucleation and film deposition for the adsorptive determination of metal traces, were selected, resulting in the very good reproducibility (RSD = 4.2% for 35 scans) of recorded signals. The voltammetric utility of the lead film electrode was compared to that of glassy carbon, mercury film and bismuth film electrodes, and was subsequently evaluated as superior. (C) 2009 Elsevier Ltd. All rights reserved.
