As a rule the analysis of nuclear oxide fuel includes the determination of uranium, plutonium, their isotopic composition,
cation impurities, carbon, nitrogen, chlorine, fluorine, oxygen coefficient. In this paper we discuss different methods for
the a analysis of unirradiated uranium and plutonium oxide fuelds used in the laboratories of the Analytical Chemistry Department:
coulometry, emission analysis, chromatography, X-ray analysis. Much consideration is being given to the analysis of uranium
and plutonium oxide samples and uranium-plutonium mixed fuels irradiated in the BOR-60 using mass-spectrometric (isotope dilution
method) and radiometric techniques. The results of uranium and plutonium determination by these methods are compared. The
main analytical characteristics of the methods are given.