1. Institute of Chemistry; Technology and Metallurgy, University of Belgrade; Njegoševa 12 Belgrade 11000 Serbia
2. Department of Biochemistry; Institute for Biological Research “Siniša Stanković”; University of Belgrade; 142 Despot Stefan Blvd Belgrade 11000 Serbia
3. Institute of General and Physical Chemistry; University of Belgrade; Studentski trg 12-16 Belgrade 11000 Serbia
4. Faculty of Technology and Metallurgy; University of Belgrade; Karnegijeva 4 Belgrade 11000 Serbia