Separation of lanthanum,cerium and samarium from uranium samples

The radiation reduction yield of Fe³⁺ in complexes with various ligands (Cl^–, SO₄^2–, CN^–) in methanol-water solutions has been studied. The effect of the dose, pH, scavenger concentration and matrix composition on the reduction, yield of Fe³⁺ in the above complexes and in Fe(acac)₃ was determined. Studies of methanol-water glasses (91) provided some interesting observations as to the effectiveness of scavenging the electrons by various ferric compounds. The effectiveness of scavenging decreases in the series Cl^–>SO₄^2–>CN^–. As opposed to Co(acac)₃, Fe(acac)₃ appeared to be an ineffective scavenger.