Mo-99 Purification Cell (IMAGE) DOE/Argonne National Laboratory Caption Argonne chemist Amanda Youker operates a remote manipulator arm in a radiation-shielded cell. The cell is used for the purification of molybdenum-99 in a process recently demonstrated by Argonne that could lead to a domestic source of the important medical isotope. Credit Argonne National Laboratory Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.