Preparation and Properties of Mercury Film Electrodes on Solid Amalgam Surface

0347022 - ÚFCH JH 2011 RIV DE eng J - Journal Article
Josypčuk, Bohdan - Fojta, Miroslav - Barek, J.
Preparation and Properties of Mercury Film Electrodes on Solid Amalgam Surface.
Electroanalysis. Roč. 22, 17-18 (2010), s. 1967-1973. ISSN 1040-0397. E-ISSN 1521-4109.
[International Conference on Modern Electroanalytical Methods. Prague, 09.12.2009-14.12.2009]
R&D Projects: GA ČR GA203/07/1195; GA AV ČR IAA400400806; GA MŠMT(CZ) LC06035
Institutional research plan: CEZ:AV0Z40400503; CEZ:AV0Z50040507; CEZ:AV0Z50040702
Keywords : voltammetry * solid and paste amalgam * Mercury film electrode
Subject RIV: CG - Electrochemistry
Impact factor: 2.721, year: 2010

A simple apparatus (electrolyzer) and a reliable procedure were developed for the preparation of mercury films of exactly defined thickness on a silver solid amalgam substrate. Constant concentration of Hg(II) in the electrolyzer is ensured by dissolution of an anode from silver paste amalgam. Small volume of electrolyte, which can be used repeatedly many times, and paste amalgam preventing the spillage of liquid mercury substantially decrease the danger of environmental contamination with mercury. Parameters and behavior of mercury film electrodes on silver solid amalgam substrate (MF-AgSAE) were compared with polished silver solid amalgam electrode (p-AgSAE) which does not contain liquid mercury, with mercury meniscus modified silver solid amalgam electrode (m-AgSAE), and with hanging mercury drop electrode (HMDE).
Permanent Link: http://hdl.handle.net/11104/0187896