[en] Aims of the inquiry: development of the instrumental and radiochemical neutron activation techniques of the manganese mercury telluride, and radiochemical NAA of the gold mining advanced rocks. Method of inquiry: Neutron activation and X - Ray analysis. The results achieved and their novelty: 1.Optimum modes and options of a spectrometer tract and the measuring equipment for measurement gamma activity of samples by the input count rate about 1· 10⁵ s^-1. 2. The developed technique of the Mn_x Hg_1-x Te allowing to determined more than 30 impurity elements. 3. Behaviour matrix and impurity elements of Mn_x Hg_1-x Te in the ion exchange chromatography system AV-17-HCl have been investigated. Distribution coefficient, macro components distribution along length chromatography column and eluate curves of the impurity elements has been measured. The developed RNAA technique of Mn_x Hg_1-x Te allowed to define 22 impurity elements was carried out. 4. The extraction-chromatography behaviour of gold and silver in the Tri - n - butylphosphate (TBP) - HBr system has been investigated. Distribution coefficient (static conditions) and distribution on along of column (dynamic conditions) of gold and silver in this system have been measured. RNAA technique of Au and Ag in gold extractive industry advanced rock was elaborated. (author)