[Milking of 234Th from uranium by the combined use of adsorption on active charcoal and anion exchange].
A rapid and simple procedure for the preparation of carrier-free 234Th for use as a tracer has been devised. A 0.01 mol X dm-3 HCl solution (120 cm3) of uranium (1.6 mol X dm-3) is kept contact with active charcoal. After the bulk uranium solution is removed, 234Th adsorbed on the charcoal is eluted with a 6 mol X dm-3 HCl solution (120 cm3). A small amount of uranium remaining in the solution of 234Th is completely removed by passing the solution through anion-exchange column.
D000327:Adsorption; D000837:Anion Exchange Resins; D002606:Charcoal; D005069:Evaluation Studies as Topic; D007474:Ion Exchange / Q000379:methods*; D007475:Ion Exchange Resins; D013910:Thorium / Q000302:isolation & purification*; D014501:Uranium / Q000032:analysis*
D000837:Anion Exchange Resins; D007475:Ion Exchange Resins; D002606:Charcoal; D014501:Uranium; D013910:Thorium