1. Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nám. 2, CZ-166 10 Prague 6, Czech Republic
2. Department of Analytical Chemistry, Faculty of Science, Charles University in Prague, Hlavova 2030/8, CZ-128 43 Prague 2, Czech Republic
3. Institute of Hydrodynamics of the Czech Academy of Sciences, Pod Pat’ankou 30/5, CZ-166 12 Prague 6, Czech Republic