title: Radioactive substoichiometric isotope-dilution procedure for the determination of rare earth metals.
abstract: A theory is developed which describes the equilibrium conditions when solutions containing trace metals and substoichiometric amounts of EDTA are extracted with thenoyltrifluoroacetone. Experimental evidence is given to support the theory. A method for the determination of microgram quantities of rare earth metal is outlined as an application.
authors.affiliation: Department of Chemistry, The University of Aston in Birmingham, Birmingham 4, England.
authors.forename: G B
authors.initials: GB
authors.lastname: Briscoe
authors.forename: A
authors.initials: A
authors.lastname: Dodson