-29Gamma spectra on whole samples (a) and (») were identical
(Fig. 8) and exhibited 7
peaks at
.08 (weak) and .12 MEV considered to be from Co?’
67 MEV
u
"
"
"
Csi37
.84 MEV
a
"
n
tt
Mn>4
+a)
"
tt
tt
zn°>,
"
tt
"
1
C500
1.12
_
1.33
MEV
1.17
MEV
650°
The results from the chemical separations are as follows:
Fraction
Original sample
Co>!, 60
Min4
Vanadium
In
7
c/n
in methane
gas -Cflow chamber
fal
(bd)
2,690
3,410
1,190
747
0
1,190
213.
0
Reference for the
chemical technique
—
Kleinberg (1954)
Meinke (1949)
Meinke (1949)
spectra of the manganese fractions, both samples exhibited
the typical .84 MEV 7
peak observed in Nn>4 spikes (Pig. 8).
The cobalt separations exhibited the .12 MEV
tributed to Co-’ and the 1.17 and 1.33 7
8 and Fig. 8, inset).
nor was it expected.
7
peak at-
peaks of C060 (Fig.
‘The .81 MEV peak of Co? was not observed
The samples were collected in November 14
and any C028 present at that time would have decayed to an unde-
tectable level by the time of analysis.
The .67 and 1.12 MEV 7
peaks observed in the whole samples were absent in the
7 curves
on the cobalt separations, thus indirectly confirming the pres-
ence of 2n©> and ¢s!37 in the bonito muscle samples (Fig. 8).
The vanadium separation did not exhibit detectable
B
or
7
activity.
In contrast to the absence of the .81 MEV Co-?
7
peak in
the cobalt fraction from the 1954 bonito muscle samples, strong