-13-
II
III
IV
V
Bonito liver, Fox Island, Bikini Atoll,
collected September 22, 1956,
Fish liver homogenate, How Island, Bikini Atoll,
collected September 22, 1956,
Fish liver homogenate, Belle Island, Eniwetok
Atoll, collected May-June, 1954,
Soil, Belle Island, Eniwetok Atoll, collected
September 19, 1956.
The results for the first two separations -- clam kidney
and bonito liver -- are cescribed in detail.
The summarized
results of these and the other three samples are shown in
Table 4,
Sample I
Clam kidney sample I (Belle Island, Sept. 22, 1956) was
passed through a Dowex 50 cationic resin column (Fig. 1).
The
anions were not adsorbed onto the resin bed and were washed out
of the column with a .2N HCl.
This fraction consisted of Rut.
RnL06 and rn? -Nb?° in the anion form.
The disintegration rates
of the Rut°6-pnt°® (13,000 afm) and Zr99-Nv95 (2,430 d/m) in the
fraction were determined from the 7
spectrum curve (Fig. 2).
On the basis of the disintegration rate calculated from the 7
spectrum the P
ce/m.
count for the fraction should have been 2,190
The observed B
count was 2,300 c/n.
gr? -Np??, in the cation form, and Fe? were present in the
oxalate sample.
Based on calculations from the
7
cationic Zr?°-Nb2> accounted for 280 d/m and Fe°9,
(Fig. 2).
spectrum curve,
2,680 dfn
Fe-> was detected at a very low efficiency in the frac-
tion because an end window geiger tube was used for the measurement.