USE OF 2-PHASE AQUEOUS SYSTEMS BASED ON WATER-SOLUBLE POLYMERS IN THIN-LAYER AND EXTRACTION CHROMATOGRAPHY FOR RECOVERY AND SEPARATION OF ACTINIDES

Authors
MOLOCHNIKOVA NP SHKINEV VM MYASOEDOV BF
Citation
Np. Molochnikova et al., USE OF 2-PHASE AQUEOUS SYSTEMS BASED ON WATER-SOLUBLE POLYMERS IN THIN-LAYER AND EXTRACTION CHROMATOGRAPHY FOR RECOVERY AND SEPARATION OF ACTINIDES, Radiochemistry, 37(6), 1995, pp. 477-481
Citations number
28
Categorie Soggetti
Chemistry Analytical","Chemistry Inorganic & Nuclear
Journal title
Radiochemistry → ACNP
ISSN journal
10663622
Volume
37
Issue
6
Year of publication
1995
Pages
477 - 481
Database
ISI
SICI code
1066-3622(1995)37:6<477:UO2ASB>2.0.ZU;2-C
Abstract
The feasibility has been demonstrated of using two-phase aqueous syste ms based on water-soluble polymers, polyethylene glycol and dextran su lfate, in thin-layer and extraction chromatography for recovery and se paration of actinides. A convenient method has been proposed for conti nuous recovery of Np-239 from Am-243, Originating from differences in sorption of tri- and pentavalent actinides from sulfate solutions cont aining potassium phosphotungstate by silica gel impregnated with polye thylene glycol. New plates for thin-layer chromatography using water-s oluble polymers have been developed. These plates were used to study b ehavior of americium in various oxidation states in thin sorbent layer s.