-39-
not in fish muscle nor in
in plants, birds, and crebs but
of the coconuts.
The greatest amount of Sp?
y 1955 samples was 27 x 10
-6
0
found in the
uc/g wet weight of coconut
» muscle.
or Radiostrontium Separation.
soipitation method was used,
The fuming nitric acid
the sample being dissolved in
For the
bute nitric acid and strontium carrier then added.
tiseues the strontium was precipitated by increasing the
}
ie concentration to 72 percent by the addition of 90 percent
tric acid and stirring for one-half hour.
brontium nitrate was dissolved in water,
The precipitated
scavenged with ferric
rdroxide and precipitated a second time from 72 percent
tric acid, then counted for strontium radioactivity.
Three
bikes run concurrently with the bird samples gave a yield of
).2 t 0.9 percent.
Separation of x2? from the strontium
Miicated that one-third to one-half of the total strontium was
front Lum-90 as of the counting date, December 1954.
: Strontium analyses of samples of coconut meat and milk and
pdanus fruit from the January 1955 collection were made June 14,
p55.
The procedure was similar to that above except that 75
reent nitric acid was used and the scavenge with ferric hydrox° was followed by a scavenge with mixed sulfides in acid and
B Alkaline solution.
Four spikes in non-radioactive fish meal
ph Pun concurrently with these samples gave a yield of
6 . 5-3 percent.
Pour blanks using the same fish meal and
a @8 a check on the radioactivity in the meal, the reagents
On the glassware gave counts of 0, 1, O, and 0.
Yields from, .
ae
4.
&