Determination of platinum and palladium in geological materials by neutron-activation analysis after fire-assay preconcentration.
Fire-asay preconcentration followed by neutron-activation analysis permits the determination of as little as 0.5 ppM of platinum and 0.5 ppM of palladium on a 20-g sample. Platinum and palladium are separated with carriers and beta-counted. Results for the platinum and palladium content of seven U.S.G.S. standard rocks are presented.
Rowe
J J
JJ
U.S. Geological Survey Washington, D.C. 20242, U.S.A.
Simon
F O
FO