1. RCPTM, Department of Analytical Chemistry, Faculty of Science; Palacký University; 17.listopadu 12 771 46 Olomouc Czech Republic
2. Department of Organic Chemistry, Institute of Molecular and Translational Medicine, Faculty of Science; Palacký University; 17.listopadu 12 771 46 Olomouc Czech Republic
3. Department of Chemistry; University of Washington; Seattle WA USA
4. Academy of Sciences of the Czech Republic; Institute of Microbiology; v.v.i., Vídeňská 1083 142 00 Prague 4 Czech Republic