Abstract

A simple and rapid method for spectrophotometric determination of palladium from highly acidic and highly radioactive nuclear waste using α-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 μg of palladium.

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