Influence of Storage Temperature on Radiochemical Purity of Tc-Radiopharmaceuticals.

The influence of effective room temperature on the radiochemical purity of Tc-radiopharmaceuticals was reported. This study was born from the observation that in the isolators used for the preparation of the Tc-radiopharmaceuticals the temperatures can be higher than those reported in the commercial illustrative leaflets of the kits. This is due, in particular, to the small size of the work area, the presence of instruments for heating, the continuous activation of air filtration, in addition to the fact that the environment of the isolator used for the Tc-radiopharmaceuticals preparation and storage is completely isolated and not conditioned.