Gamma activation analysis of organogenic elements in biologically active organometallic compounds

Gamma-activation analysis of organogenic elements in biologically active organometallic compounds is considered. The optimum irradiation energy for separate determination of oxygen, carbon, nitrogen and phosphorus is 15,18 and 23 MeV. The concentration of the elements has been determined by comparison of activities of the samples to those of the standards. The best results of analysis have been obtained using the extraction of oxygen and nitrogen in a high-temperature furnace in helium atmosphere. The average concentrations are 42-48 % oxygen, 30-34 % carbon, 2-2.6 % nitrogen, 3-4 % phosphorus for different samples (as recalculated to the dry substances); the overall relative error being no higher than 5-10 %