Abstract
A method of neutron activation analysis has been developed for the determination of trace amounts of scandium, chromium, iron, cobalt, zinc, and antimony as the long-lived nuclide in the deposits and airborne particulates. Collected samples in sealed quartz tubes were irradiated for 200 hours in a JRR-2 reactor (thermal neutron flux : 4× 1013 n/cm2·sec) and were analyzed either by the non-destructive method which used Ge(Li) detector or the chemical separation method which used anion exchange separation followed by extraction with TTA-benzene and DDTC-carbon tetrachloride. The two results were in good agreement. Consequently, the non-destructive method with Ge(Li) detector was recommended as an efficient means for analyzing many samples of deposits and airborne particulates at a time with high sensitivity.
