Analytical procedure using DGA-normal resin developed for separation of 90 Sr from radiocaesium and other elements

In this paper, DGA-normal resin has been used for the chemical separation of Sr and Y from Cs as well as other elements in standard solutions. The decontamination factor of Cs was tested in different acidic media. It was found that 8 M HNO 3 was the most effective rinsing solution with a Cs decontamination factor exceeding 400,000. Application of the DGA-normal resin allows the separation of Y and Sr from other interfering beta emitter isotopes. This resin is suitable for 90 Sr and 90 Y separation in contaminated Fukushima soil samples giving the prospect of 90 Sr measurement in a direct ( 90 Sr) and indirect way ( 90 Y).