Table 1, Summaryof the volumes used and the radioisotopes eluted
from Dowex 50
resinin
the primary ion-exchange sepa-
ration of the isotopes in Kabelle Island soil collected July
18, 1957
Volume in
Fraction
milliliters
Anions
Isotopes eluted
490
Ru106_Ry,1096
Sb 125, Zr95-Nb?5
HC! wash
0. 5% oxalic acid
200
300
Sb 135
Fe)
5% ammonium citrate
pH 3.5
200
pH 4.1la
b
c
d
47
58
37
53
Cel44_ pp 144. ynS4. Cg137. 6980
Cel44. pp 144. nend4. Gg 137’
Ce!44_ppl44. yynd4
pH 4.6
100
Cal37. Sr90
pH 5.1
100
gr 80
pH 5.6
100
gr?
pH 6.1
100
Secondary Elutions
Three of the above fractions were subsequently treated by other ionexchange methods for more complete separation of the individual isoThe anion fraction contained the unknown isotope as well as Ru!06~
topes.
Rhl06
In order to separate the unknown isotopes a modification of the
method of Smith and Reynolds 18 for separating tellerfum, antimony, and
te,
Fens
3
omy
aevb
mp
pale:
tee
cP.
oe om
ye
vom gs
Fm
ve
oe