Fractionated elution of 99Mo/99mTc generators using calibrated vials.

Fractionated elution consists in collecting the fractions of an eluate with the highest radioactive concentration. It may be useful to meet the requirements of a subset of clinical radiopharmacy procedures. This study aims to describe and evaluate straightforward procedures allowing to readily perform fractionated elution on dry and wet columns Mo/Tc generators by using calibrated vials.