poly zirconium chloride (pzc) as an efficient adsorbent for 99 mo

this radionuclide is almost exclusively produced from the decay of its parent 99mo. 99mtc is themost available and important nuclide used as a diagnostic agent in nuclear medicine. to develop anewly practical 99mtc generator using ( n,y ) 99mo, an inorganic polymer adsorbent has beendeveloped framed with oxygen-zirconium-chlorine bonds with a high adsorption of mo, thepolyzirconium adsorbent was named pzc ( poly zirconium chloride) which made clear that pzchas an ability and high performance as a practical adsorbent for 99mtc generator using ( n, y)99mo. the amount of 99mo adsorbed to pzc reached about 250mg/g pzc. 99mtc was elutedwith a small volume of saline solution in the yield of about 76.43 %. the breakthrough of 99moin the elution of 99mtc was less than 0.015%.