ABSORPTIOMETRIC DETERMINATION OF MICROGRAM AMOUNTS OF URANIUM WITH RHODAMINE B.

摘要: Uranium (VI) can be extracted as a complex with rhodamine B into benzeneetherhexone solvent from benzoate buffered solution. Optimum conditions for the colour development are defined, leading to molar absorptivity of 102700 mmol-1 cm2 at 555 nm, highest yet reported uranium complex. The determination in range 0.02–3 μg/ml nitrate samples is described. relative standard deviation ranges 20 0.6%. interference several ions investigated.