Abstract
Radiochemical separations were made on selected samples
from the Pacific Proving Ground by means of ion-exchange resin
column and precipitation techniques.
The isotopes in the sepa-
rated fractions were identified by their half lives, maximum
beta energies, and gamma energies.
In addition to radioactive
fission products, the non-fission radioisotopes, Mn>", Fe»,
Fe, Co’, Co? 3 0°, and zn°>, also were identified in some
samples.
The latter isotopes accounted for almost all of the
radioactivity in the zoological samples of marine origin.
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