Affiliation: | 1. Department of Chemistry, Faculty of Veterinary Science, Szent István University, H-1400 Budapest, P.O. Box 2, Hungary;2. Chinoin Ltd, Tó utca 1-5, H-1045 Budapest, Hungary;3. Department of Inorganic and Analytical Chemistry, University of Technology and Economics, 1111 Budapest, Szt. Gellért tér 4, Hungary |