TY JOUR TI INSTRUMENTAL METHODS IN MODERN FIRE-TECHNICAL EXPERTISE. 5. CHROMATOGRAPHIC RESEARCH METHODS KW chromatography KW gas chromatography KW gas-liquid chromatography KW ion chromatography KW thin-layer chromatography KW high-performance liquid chromatography KW fire-technical expertise KW research objects JO MONITORING AND EXPERTISE IN SAFETY SYSTEM AU Cheshko, I.D. AU Yatsenko, L.A. AU Princeva, M.Y. PY 2023 IS 2023 PB Saint-Petersburg University of State Fire Service of Emercom of Russia