Table 5.
Summary of wet-chemistry analyses.
Sample type
Number of samples
Bikini soil
346°
Nuclides analyzed
re (10), 295) (al1), 7 >8pu (30),
2395240, (ain), **tpu (259), 74 am (47).
?
Enéu soil
é
122°
905. (all), 239,240, (all),
241o (56),
24 (15).
Bikini vegetation
96
re (4), Oni (4), 728r (ali), 243m (4),
239,240, (273), 74pu (15), 78tam (20).
Eneu vegetation
31
06, (all), 239,240, (all),
24]an (2).
Bikini animal
10
re (2), O3N4 (2), 90. (all), Iolo (2),
239,240... (aii), 74 sm (3).
a
.
Total includes 13 samples where duplicate soil samples were analyzed.
Total includes 4 samples where duplicate soil samples were analyzed.
was used to determine the
241
4 Am
and toden concentrations.
For
Iron-55 was isolated by passing
the working solution, containing
coralline soil and animal tissue,
iron carrier, through a Dowex 1-X8
these aliquots were nominally 5 g.
anion column (NO, form), precipitation
A smaller aliquot of approximately
of Fe(OH) , with NH, OH, adsorption
3 g was taken from vegetation samples.
and elution from a Dowex 1-X8 column
In all cases, samples were ashed at
(Cl form), and final mounting by
950°C for 8h as the initial step
electrodeposition.
in the chemical dissolution.
aliquot of each sample was ashed
The
A separate
MCL chemistry scheme for the deter-
and dissolved for elemental analysis
mination of
of iron by atomic absorption
Oy and Pu from coralline
soils, vegetation, and animal tissue
spectroscopy.
is outlined in Table 6.
required to provide corrections to
~10-
9010052
peer:
Paes nemap esata 202 rtd
:
These analyses were