Application of Ion Exchange, Solvent Extraction, and Ion-Imprinted Methods for Separation of 203Pb

Resumo

Lead-203 was produced by proton bombardment of natural thallium target. For producing ²⁰³Pb, ^natTl was electroplated on copper backing as target and was bombarded by energetic proton beam. After bombardment, the target was dissolved in 1 M HNO₃. Ion exchange, solvent extraction, and nanomagnetic ion-imprinted polymer methods were used for separating ²⁰³Pb from thallium. The separation efficiency of these methods was studied. γ-Ray spectroscopy was applied for evaluating ²⁰³Pb and others radionuclides. The separation efficiency was determined from the γ-ray spectra. The separation efficiency of the methods using ion exchange, solvent extraction, and nanomagnetic ion-imprinted adsorbent was 98, 99.3, and 96.4%, respectively.