A. G. Syzdyk
L.N. Gumilyov Eurasian National University
Kazakhstan

Ayazhan Galymkyzy Syzdyk  – 2nd-year master's student, L.N. Gumilyov Eurasian National
University; Faculty of Natural Sciences, Department of Chemistry,

010000, Republic of Kazakhstan, Astana, 2 Satpaev Street

E. A. Zhakmanova
L.N. Gumilyov Eurasian National University
Kazakhstan

Ekaterina Alexandrovna Zhakmanova – PhD student, L.N. Gumilyov Eurasian National University;
Faculty of Natural Sciences, Department of Chemistry,

010000, Republic of Kazakhstan, Astana, 2 Satpaev Street

G. Zh. Seitenova
L.N. Gumilyov Eurasian National University
Kazakhstan

Gaini Zhumagalievna Seitenova – Candidate of Chemical Sciences, Associate Professor,

010000, Republic of Kazakhstan, Astana, 2 Satpaev Street

R. M. Dyussova
Toraighyrov University
Kazakhstan

Rizagul Muslimovna Dyussova – Candidate of Technical Sciences, Postdoctoral Researcher,

140000, Republic of Kazakhstan, Pavlodar, 64 Lomov Street