S. M. Leshchev
Belarusian State University
Belarus

Sergey M. Leschev – D. Sc. (Chemistry), Professor

14, Leningradskaya, Str., 220030, Minsk

O. N. Mikhniuk
State Institute for Advanced Training and Retraining of Customs Authorities of the Republic of Belarus
Belarus

Olga N. Mikhniuk – Postgraduate Student

45/4, Mogilevsraya Str.,200007, Minsk

A. V. Nemkevich
Belarusian State University
Belarus

Andrei V. Nemkevich – Master student

14, Leningradskaya, Str., 220030, Minsk

S. F. Furs
Belarusian Medical Academy of Postgraduate Education
Belarus

Sergey F. Furs – Ph. D. (Chemistry), Associate Professor

3/3, P. Brovka Str., 220013, Minsk