Fh. Elsweify et N. Zakaria, STUDIES ON THE SORPTION BEHAVIOR OF ARSENAZO-I, U(VI) AND TH(IV) SPECIES FROM AQUEOUS-SOLUTIONS OF ARSENAZO-1 ON DIFFERENT TYPES OF ION-EXCHANGERS, Journal of radioanalytical and nuclear chemistry, 209(1), 1996, pp. 51-63
Three different types of ion exchangers namely Dowex-50 WX8, AG-2X8 an
d Chelex-100 are used to study the sorption behavior of Th(IV) and U(V
I)from solutions of Arsenazo-I. The sorption behavior of Arsenazo-I it
self is also studied. Possible species sorbed on these resins or prese
nt in solutions of U(VI)- and Th(IV)-Arsenazo-I at different concentra
tions and at different hydrogen ion concentrations are identified. Fro
m the obtained data, optimal conditions for separating the. two elemen
ts are recommended. The possibility of individual concentration of Th(
IV) and U(VI) as coloured Arsenazo-I complexes on AG-2X8 is evaluated.