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Abstract -- The possibility of using solid-electrolyte transducers with nonstoichiometric electrodes was studied, and the effect of the material and nonstoichiometry of lead monochalkogenides as measurement electrodes on the work [...]

Byline: A. V. Parchaikin (1), E. F. Radaev (1) Abstract: The concentrations of cadmium, lead, and copper in the water of Amur Bay were determined by anodic stripping voltammetry, and the speciation of these elements in the seawater was calculated. The predominant complexes of cadmium, lead, and copper were determined in the seawater by ion exchange under dynamic conditions. The concentrations of anionic, cationic, and neutral complexes of cadmium, lead, and copper in the seawater were calculated. The ability of seawater components to form complexes with these trace elements was assessed. Author Affiliation: (1) Department of Chemistry, Far East State University, ul. Oktyabr'skaya 27, Vladivostok, 690950, Russia Article History: Registration Date: 06/10/2004

Byline: Ufuk Celik (1), Sukran Cakli (1), Jorg Oehlenschlager (2) Keywords: Lead; Cadmium; Voltammetry; Plasma asher; Fish Abstract: Lead (Pb) and cadmium (Cd) contents in the edible parts (muscle, fillet) of 68 commercially used fish species from two European regions, the northeastern Atlantic (Tampen, north of the Shetland Islands, Faroe Islands and Copinsay) and the Mediterranean (Izmir Outer Bay, Homa Lagoon/Izmir and Mersin Bay), were determined by means of differential pulse stripping anodic voltammetry. In the sample preparation step, all frozen fish samples were lyophilised, milled in a ball mill and finally decomposed in an oxygen plasma ashing chamber. Among the fishes from northeastern Atlantic waters, the highest average Pb concentration belonged to those from Tampen with 11.25 Aug/kg and the average Cd concentration to fish from Copinsay with 2.23 Aug/kg. For the Mediterranean fishes, the highest average Pb and Cd concentrations belonged to those from Mersin Bay, with 185.39 Aug/kg and 2.12 Aug/kg, respectively. The accuracy of the concentrations determined in this study was checked by measurements of the certified reference material CRM No 422 cod muscle from the Commission of the European Communities, Community Bureau of Reference. All Cd and Pb concentrations observed in species of the eastern Mediterranean and the northeastern Atlantic were below the maximum permitted national Turkish and European levels. Author Affiliation: (1) Faculty of Fisheries, Ege University, 35100 Bornova, Izmir, Turkey (2) Institute of Fishery Technology and Fish Quality, Federal Research Centre for Fisheries, Palmaille 9, 22767, Hamburg, Germany Article History: Registration Date: 19/11/2003 Received Date: 05/08/2003 Online Date: 12/12/2003

Byline: I. Bockelmann (1), E. A. Pfister (1) Abstract: A method for subclinical diagnosis of the consequences of exposure to lead with an example of heart rate analysis is substantiated, and methods for the study of neurotoxic effects on the autonomic nervous system are critically evaluated. Author Affiliation: (1) Institut fur Arbeitsmedizin und Hygiene, Otto-von-Guericke-Universitet Magdeburg, Germany Article History: Registration Date: 16/10/2004