| abstract |
In a first aspect, the present invention relates to a method for purifying Ac from a mixture comprising Ac and at least one element selected from Ra, Pb, Po, Bi and La, the method comprising: (a) performing a first separation using a first extraction chromatographic column based on a first resin (either a diglycolamide resin or a dialkylphosphoric acid resin) and a first matrix solution; and (b) performing a second separation using a second extraction chromatographic column based on a second resin (respectively either a dialkylphosphoric acid resin or a diglycolamide resin). |