1. Department of Analytical Chemistry Faculty of Chemical Technology University of Pardubice Studentská 573 CZ-53210 Pardubice Czech Republic
2. Department of Chemistry “G. Ciamician” University of Bologna Via Selmi 2 40126 Bologna Italy
3. Institute of Organic Chemistry and Technology Faculty of Chemical Technology University of Pardubice Studentská 573 CZ-53210 Pardubice Czech Republic
4. Brno University of Technology, Faculty of Chemistry Materials Research Centre Purkyňova 118 612 00 Brno Czech Republic