1. Biomedical Research Centre, Sumy State University, R-Korsakova Street, 40007 Sumy, Ukraine
2. Faculty of Chemistry, Silesian University of Technology, 44-100 Gliwice, Poland
3. Institute of Atomic Physics and Spectroscopy, University of Latvia, Jelgavas Iela 3, LV-1004 Riga, Latvia
4. Faculty of Chemical Engineering and Technology, Cracow University of Technology, Warszawska 24 Street, 31-155 Cracow, Poland