A device for on-line electromigration measurements of radioelements in free electrolytes

An electromigration device has been developed for the on-line measurement o f absolute individual ion mobilities of radioactive species in free electro lytes. The device is composed of a migration cell, a gamma -radiation scann ing unit and a data processing system. The performance of two BGO-scintilla tors as scanning unit and the reliability of an on-line data processing sys tem were studied with calibrated radioactive sources of given velocities. T he system was found to work with a high reproducibility rate. The migration velocities were determined with an accuracy better than 1%.