1. Ivan Franko National University of L'viv, Department of Analytical Chemistry; 79005 Kyryla i Mephodia Str. 8 L'viv Ukraine
2. National Pharmaceutical University; Department of Physical and Colloid Chemistry; 61168 Bljuhera Str. 4 Kharkiv Ukraine
3. Ivan Franko National University of L'viv; Department of Life Safety; 79000 Doroshenka Str. 41 L'viv Ukraine