Separation Behavior of Am/Cm on DGA Resin in Hydrochloric Acid Aqueous Solution

In our previous study, separation of americium (Am) from curium (Cm) was successfully achieved using N,N,N',N'-tetraoctyl diglycolamide (TODGA) in 1 mol/L hydrochloric acid (HCl) through chromatographic techniques.To gain a better understanding of Am and Cm behavior towards different concentration of HCl, in this study, we performed Am/Cm separation in varying concentrations of HCl, we conducted experiments at 0.1M, 0.5M, 0.8M, and 1.2M HCl as comparison.The effectiveness of separation of each HCl concentration is analyzed by calculating some key parameters such as separation resolution (R), separation factor (α), and the number of theoretical plates (N).The result shows that 1.0M of HCl shows significant separation compared to other mentioned concentration, as indicated by highest R and N value.Separation system in 1.2M of HCl shows higher separation factor than 1.0M, however, broader peaks and tailing between Am and Cm in this condition reduce efficiency of separation.This study provides valuable insights into optimizing HCl concentration for effective Am/Cm separation by considering R, N and α values with implications for applications in nuclear waste management and radiochemistry.