Extractive spectrophotometric determination of palladium from acidic high activity nuclear waste

A simple and rapid method for spectrophotometric determination of palladium from highly acidic and highly radioactive nuclear waste using -benzoin oxime (ABO) as extractant and isobutyl methyl ketone (hexone) as diluent has been developed. The method can be employed over a wide range of nitric acid concentrations and for palladium concentrations in the range of 1·10^–5M to 4·10^–4M in the organic phase. The molar absorptivity was found to be 4·10³l·mol^–1·cm^–1. Influence of various heavy metal ions, fission products and corrosion products was studied. The method was found to give a precision and accuracy better than 4% at 100 g of palladium.