1. Institute of Chemistry, Faculty of Natural Sciences and Mathematics, Saints Cyril and Methodius University of Skopje, P. O. Box 162, 1000 Skopje, Republic of North Macedonia
2. Department of Inorganic and Analytical Chemistry, University of Lodz, Tamka 12, 91-403 Lodz, Poland
3. Faculty of Medical Sciences, Goce Delcev University, 2000 Stip, Republic of North Macedonia