title: A new spectrophotometric method for determining the extraction constant of quaternary complexes.
abstract: A new spectrophotometric method for determining the extraction constants of quaternary complexes is described. The method has been applied to a study of the distribution between water and toluene in the V(V)-salycylhydroxamic acid-nitrate-trioctyl methyl ammonium system, determining its conditional extraction constant in toluene for several pH values.
authors.affiliation: Departamento de Química Analítica de Almería, Facultad de Ciencias de Almería, Universidad de Granada, 04120, Almeria, Spain.
authors.forename: J L
authors.initials: JL
authors.lastname: Martinez-Vidal
authors.forename: A R
authors.initials: AR
authors.lastname: Fernandez-Alba
authors.forename: D C
authors.initials: DC
authors.lastname: Ocaña
authors.forename: F
authors.initials: F
authors.lastname: Salinas