Szczegóły publikacji

Opis bibliograficzny

Effect of the modification of mercuric oxide on the properties of mercury films at HgO-modified carbon paste electrodes / Radovan Metelka, Karel Vytřas, Andrzej BOBROWSKI // Journal of Solid State Electrochemistry ; ISSN 1432-8488. — 2000 — vol. 4 iss. 6, s. 348–352. — Bibliogr. s. 352, Abstr. — International Conference on Modern Electroanalytical Methods : Seč, Czech Republic, 19–23 September 1999

Autorzy (3)

Słowa kluczowe

optical microscopymodified carbon paste electrodemercury filmmercuric oxideanodic stripping voltammetry

Dane bibliometryczne

ID BaDAP3455
Data dodania do BaDAP2001-04-18
Tekst źródłowyURL
DOI10.1007/s100080000133
Rok publikacji2000
Typ publikacjireferat w czasopiśmie
Otwarty dostęptak
Czasopismo/seriaJournal of Solid State Electrochemistry

Abstract

The influence of modifications of the mercuric oxide on the voltammetric properties of mercury film carbon paste electrodes was studied. The mercury film was formed electrochemically from the bulk red or yellow mercuric oxide-modified carbon paste electrodes. Differential pulse anodic stripping voltammetry and optical microscopy in polarised light were used to characterise the properties of the mercury films. The results were compared with those obtained using the conventional preparation of mercury-plated carbon paste electrodes when the mercury film is deposited on the surface of the electrode by reduction of Hg(II) ions in solution utilising a sufficient negative potential. It was shown that the mercury film formed from the yellow modification of the mercuric oxide provides better voltammetric characteristics than the red one owing to the high distribution of its small particles, i.e. the mercury droplets after electrochemical treatment. Such a mercury film has similar properties to those of a mercury film generated from solution.

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Carbon paste electrodes modified with $Bi_{2}O_{3}$ as sensors for the determination of Cd and Pb / Rasa Pauliukaite, Radovan Metelka, Ivan Švancara, Agnieszka KRÓLICKA, Andrzej BOBROWSKI, Karel Vytřas, Eugenijus Norkus, Kurt Kalcher // Analytical and Bioanalytical Chemistry ; ISSN 1618-2642. — 2002 — vol. 374 iss. 6, s. 1155–1158. — Bibliogr. s. 1158, Abstr. — Publikacja dostępna online od: 2002-11-01