1. Faculty of Chemical Technology, Department of Biological and Biochemical Sciences, University of Pardubice, Studentska 573, 532 10 Pardubice, Czech Republic
2. Faculty of Science, Department of Chemistry, University of Hradec Kralove, Rokitanskeho 62, 500 03 Hradec Kralove, Czech Republic
3. Department of Analytical Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentska 573, 532 10 Pardubice, Czech Republic