1. Department of Optics, Palacký University Olomouc, 17. listopadu 12, 77146 Olomouc, Czech Republic
2. Department of Analytical Chemistry, University of Chemistry and Technology, Technická 5, 16628 Prague, Czech Republic
3. Institute of Organic Chemistry and Biochemistry, Academy of Sciences, Flemingovo náměstí 2, 16610 Prague, Czech Republic