A separation scheme of a complex mixture of radiohygienically important radionuclides of corrosion and fission products has
been worked out. Rapid separation by means of solvent extractions with metal (sodium, antimony, zinc) diethyldithiocarbamates
has been achieved. Chloroform containing metal diethyldithiocarbamates has been used as the organic phase. The procedure permits
to separate selectively the representative radionuclides. The selectivity of separation was verified by gamma spectrometry.