Author(s):
1. Suzana Apostolov, Univerzitet u Novom Sadu, Prirodno-matematički fakultet, Serbia
2. Dragana Mekic, University of Novi Sad, Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental, Serbia
3. Aleksandra Bogdanovic, University of Belgrade, Faculty of Technology and Metallurgy, , Serbia
4. Slobodan Petrovic, University of Belgrade, Faculty of Technology and Metallurgy, ::Karnegijeva 4, Serbia
5. Borko Matijević, Serbia
6. Gorana Mrđan, Prirodno-matematički fakultet u Novom Sadu, Serbia
7. Đenđi Vaštag, Serbia

Abstract Paper for reviews