title: Solid-phase extraction of technetium--amine complexes onto C18 silica and its application to the isolation of 99Tc
abstract: The extraction of Tc-tripentylamine complexes onto C18 silica solid-phase extraction columns is evaluated for the selective removal of 99Tc from other isotopes. The Tc-amine complex is quantitatively extracted from sulfuric acid and can be recovered from the column by elution with dilute alkali. A clean separation of Tc from all likely contaminants, including Ru, is achieved showing that C18 silica solid-phase extraction columns are a viable and attractive alternative to the solvent extraction of 99Tc.
authors.affiliation: School of Ocean and Earth Science, Southampton Oceanography Centre, UK.
authors.initials: PE
authors.lastname: Warwick
authors.initials: IW
authors.lastname: Croudace
authors.initials: AG
authors.lastname: Howard