-20-
Teble
7.
radioassay of liver tissue from
reef fish collected at Enibuk Island, Ailinginae
Atoll, July 11, 1957
Summary of the
lsotope
Be ta-gamma
Betat
d/m/g wet
d/m/g wet
activity,
weight
zn©5
786
activity,”
weight
uc /ke
Per cent
weight
gamma
wet
ok
total beta-
activity
357
39.5
Coot
4ag
138
2195
21.6
C058
C60
69
54
20
19
032
024
3.5
2.7
Feo5
Mn 54
516
25
.234
.011
25.9
1.2
Unidentified
111**
211**
.050
5.6
334
.902
100.0
sr79
Totals
0
1,988
0
0
* Betat activity for Zn©5 is 2.5 per cent of the total
Self-absorption corrections for beta
radioactivity.
activity in cobalt were made by using standards and
spikes in 5 per cent citrate dried on 13-inch plates
and counted in the methane gas-flow Nucleometer
(Lowman et al., 1957).
**unidentified radioactivity was estimated by subtracting
the calculated beta activity in Zn
Cod,
and
from the beta activity (314 d/m/g wet weight)
counted in the methane gas-flow counter.