title: Preparative gas chromatography of volatile metal compounds-I Separation of aluminium, chromium and iron beta-diketonates.
abstract: The analytical gas chromatography of a range of fluorinated and unfluorinated beta-diketonates of aluminium, chromium and iron has been studied m detail and conditions have been established for their complete separation; the complexes of trifluoroacetylpivaloylmethane show the best characteristics for this purpose. A range of liquid phases and column conditions have been considered and Apiezon substrates have been shown to give optimal resolution. The technique has been extended to a preparative scale with up to 0.1-g chelate samples, and the efficiency of the process demonstrated by the removal of 2% proportions of two metal complexes from a sample of the third. Implications of the technique for the purification of metals are discussed.
authors.affiliation: Department of Chemistry, The University of Birmingham, P.O. Box 363, Birmingham, England.
authors.forename: R
authors.initials: R
authors.lastname: Belcher
authors.forename: C R
authors.initials: CR
authors.lastname: Jenkins
authors.forename: W I
authors.initials: WI
authors.lastname: Stephen
authors.forename: P C
authors.initials: PC
authors.lastname: Uden