The study of separation ¹⁰⁷Pd with the extraction chromatography using Ni Resin

The object of study was to test and optimize new method for the separation of ¹⁰⁷Pd by Nickel Resin from TrisKem International. ¹⁰⁷Pd is one of the declared radionuclides in radioactive waste. The method for the determining of radionuclide ¹⁰⁷Pd in model samples was optimized. The sorption capacity of Nickel Resin is 0.5 mg Pd²⁺ on 0.2 g Nickel Resin. As part of the optimization process the effect of the concentration of Cl^- ions on the sorption of Pd²⁺ on Nickel Resin was studied. A suitable environment for the sorption of Pd²⁺ on Nickel Resin is the hydrochloric acid in the range of (0.5 - 3) mol·dm^-3. The suitable environment for the elution of Pd²⁺ is the 8 mol·dm^-3 HNO₃ with the volume 50 ml. The radiochemical separation yields of palladium by AAS with flame atomization 1100 from Perkin Elmer were determined. In the next phase of work the optimization method on the real samples of radioactive waste in the NPP Mochovce and Jaslovske Bohunice will be applied. (authors)