Determination of indium in standard rocks by neutron activation analysis.
A rapid neutron activation method for the determination of indium in rocks, based on 54 min (116m)In, is described. The method has been applied to a series of geochemical standards including granite G-1 and diabase W-1. The precision is better than +/- 5% for samples containing more than 5 x 10(-10)g indium. Good agreement with previously published values for G-1 and W-1 has been obtained.
Johansen
O
O
Institutt for Atomenergi, Kjeller, Norway.
Steinnes
E
E