Fh. Elsweify et Mm. Kamel, STUDIES ON THE EXTRACTION BEHAVIOR OF ZR(IV), CE(III), TH(IV) AND U(VI) FROM AQUEOUS-SOLUTIONS OF ARSENAZO-I WITH HDEHP, HTTA, TDA AND TCMA, Journal of radioanalytical and nuclear chemistry, 207(2), 1996, pp. 369-382
The extraction behavior of Zr(IV), Ce(III), Th(IV) and U(VI) from aque
ous solutions containing Arsenazo-I with the organic solvents tridodec
ylamine (TDA), 1-[thenoyl-(2)]-3-3-3-trifluoroacetone (HTTA), di(2-eth
ylhexyl) phosphoric acid (HDEHP) and tricaprylmethylammonium chloride
(TCMA) in xylene has been investigated. Effect of hydrogen ion concent
ration in the aqueous phase, Arsenazo-I concentration, as well as the
effect of solvent concentration on the extraction was studied. Some al
ternatives for separation of the elements studied were recommended ena
bling the spectrophotometric determination of these elements using Ars
enazo-I without interference.