TY - RPRT TI - Determination of platinum and palladium in geological materials by neutron-activation analysis after fire-assay preconcentration AU - J.J. Rowe AU - F.O. Simon PY - 1971 DO - 10.1016/0039-9140(71)80016-4 UR - https://pubs.usgs.gov/publication/70010283 ID - 70010283 ER -