Human metabolism of aluminium-26 and gallium-67 injected as citrates

Abstract
1 26Al and 67Ga were given as citrates to a healthy male volunteer by intravenous injection. The retention of both tracers was studied by body radioactivity measurement. Levels in blood and excreta were determined by y-ray spectrometry and/or accelerator mass spectrometry. 2 More than half of the 26Al had left the blood after 15 min and the decline continued, leaving 67Ga differed markedly from that of 26Al in all aspects studied.