Results of radiochemical separations by ion exchange columns and precipitation
techniques on five plankton samples in and near the Pacific Proving Ground. *
(7,8,9)
75,900
d/m/g ash
Ryl06-Rp106
127,000
of total
activity
3
44.9
not determined
9
0
3
9
Per
cent
activity
O
12.5
13.7
13.2
8.0
3.1
0.4
0
9.3
0.3
0.3
9
0
5.7
not determined
0
Mn54
0.1
Fe?
Feo9
19.4
0
19.2
0
12.7
0
27.6
O
38.8
O
Cod?
9.9
8.5
15.5
6.1
46
C058
C960
zn©5
15.0
0.9
18.0
13.8
0.8
13.8
25.9
1.3
17.3
10.8
0.8
32.3
5.7
1.0
43.9
3
zy,
trace
0
48,000
of total
activity
of total
(57,58,59)
d/m/g ash
activity
of total
Plankton
d/m/g ash
activity.
0
C3137 (Bal37m)
198,000
a/m/g ash
Vv
(50,51,52,53)
Per cent
4.7
gr89-90**
(43,44,45,46)
Per cent
24.9
Celt4_ppl 44
28,799
d/m/g ash
IV
Plankton
Per cent
7.1
Zr9-NbID
(13,14,15)
III
Plankton
Per cent
of total
‘Isotope
II
Plankton
Q
* The data a corrected to date of collection
** Chemical s dfarations for sr89-90 were madg on duplicate aliquots in addition to
9/
the resin célumn separations.
Neither Sr89 nor Sr9
was detected.
’
I
Plankton
-TtTt-
Table 1.