Np. Molochnikova et Bf. Myasoedov, BEHAVIOR OF TRANSPLUTONIUM ELEMENTS ON THIN-LAYER SILICA-GEL USING DI-2-ETHYLHEXYLPHOSPHORIC ACID, Radiochemistry, 36(4), 1994, pp. 348-352
The behavior of transplutonium elements (TPE) on thin-layer silica gel
on domestic sorbphil thin-layer chromatography (TLC) plates is invest
igated using di-2-ethylhexylphosphoric acid (D2EHPA) solutions in HNO3
of various concentrations. Conditions are found for separating Bk(IV)
from other TPE in solutions with [HNO3] > 5 M and also for separating
Bk(III) and Ce. Solutions of D2EHPA as the mobile phase are recommend
ed for TLC identification of tracer amounts of different oxidation sta
tes Am in HNO3.