223Ra 227Ac METHOD FOR THE QUANTIFICATION OF 227AC IN 223RA COMPOSITIONS

摘要

The present invention comprises the steps of passing the composition through a first solid phase extraction column A comprising a thorium specific resin, passing the eluent from column A through a second solid phase extraction column B comprising an actinium specific resin, and a column It relates to a method for quantifying 227Ac in a 223 Ra composition , comprising recovering 227 Ac absorbed on a resin in B to determine its amount.