spikes run -conturrently with the sauash, papaya, crab and fish
samples were 84 ¢ 3.1 percent.
From the amount of gr9° present
which was determined by separation of x79, daughter of sr??,
it
is evident that only a small amount of sr89 could be present
(Table VII).
The results of the cettt analyses are given in Tadle VII.
a
The maximum emount found was 5 x 1076 uc in crab muscle, while
none was found in some coconut samples.
Cerium anslyses were
made of the filtrate from strontium nitrate precipitation of
the coconut, pandanus fruit,
af
3
listed in the above table.
squash, crab, and fish samples
The rare earths were extracted with
’
tributyl phespheate, and cerium was separated from the trivalent
rare earths by ceric lodate precipitation.
Recovery from
"spiked" samples of non-radioactive fish meal ash run ceoncurrently were 73 percent for coconut and pandanus fruit, and
75 percent for all the others.
Determinations were made of the amount of radtolodine
vresent in three land plants and two algae collected at Rongelap
Atoll on March 26, 1954.
These analyses made on April 24, 1954,
followed the proecedures cs outlined by Glendenain
et al.
2
The counts 43 optained were corrected back to March 26,
i954,
qi3i was present in all five plant tissues counted, vary-
ing from 0.47 percent to 0.929 percent of the total activity
found.
* Glendenin et al., "Interchange of radicactive lodine with
carrier iodine.” In Coryell, C. 5. and Sugarman, N.,
Radiochemical Studies: The Fission Products, Book 3, p. 1629,
McGraw-Hill, 1951.
.
tx
4
0
PNIR SO,
\
st