Radiometric systems for controlling sorption and elution

The applications are discussed in in-service control of the uranium content in eluates and in ion exchangers, of an industrial spectrometric unit linked to a JPR 12 computer and of the gamma spectrometry method of uranium determination. The technique using the industrial spectrometric unit is based on synchronous counting of pulses in the basic channel (235U gamma radiation) and in the reference channel (241Am). The use of radiometric systems of in-service control of the uranium content in eluates and in ion exchangers in agreement with the chemical analysis of samples increases the technical and economic importance of laboratory analytical chemistry. (J.C.)