TY JOUR TI NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY AS A METHOD OF CHARACTERIZATION OF PLANT RAW MATERIALS KW nuclear magnetic resonance KW plant raw materials KW Solidago Canadensis KW Heracléum Sosnówskyi KW pass-port identification. JO CASPIANJOURNALOF MEDICINE AND PHARMACY AU Prokopov, A.A. AU Nesterova, O.V. PY 2022 IS 3 PB Astrakhan State Medical University