1. Department of Analytical Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10 Pardubice, Czech Republic
2. J. Heyrovský Institute of Physical Chemistry of the CAS, Dolejškova 3, 182 23 Prague 8, Czech Republic
3. Institute of Chemistry and Technology of Macromolecular Materials, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 53210, Pardubice, Czech Republic