Solvent Extraction of 99Tc from Acidified Marine Waters

The extraction of the complexes formed by technetium with four cationic extractants was investigated for the direct separation of technetium from marine water media using a solvent extraction process. The different extractive systems were formed by dissolution of organic salts into chloroform. Liquid-liquid extractions using medical "Tc tracer previously introduced in the acidified marine water samples allowed the determination of the partition coefficients.