title: Separation and fluorine nuclear magnetic resonance spectroscopic (19F NMR) analysis of individual branched isomers present in technical perfluorooctanesulfonic acid (PFOS).
abstract: The production of perfluoroalkylsulfonate (PFOS) derivatives from linear alkyl precursors using electrochemical fluorination is not a clean process but, instead, gives complex mixtures. This study reports the isolation and (19)F NMR characterization of eleven perfluorooctanesulfonate isomers from a commercial mixture. This allowed the quantification of the individual CF(3) branched isomers that predominate in technical PFOS.
authors.affiliation: Wellington Laboratories Inc., Research Division, Guelph, Ontario, Canada N1G 3M5. gilles@well-labs.com
authors.forename: Gilles
authors.initials: G
authors.lastname: Arsenault
authors.forename: Brock
authors.initials: B
authors.lastname: Chittim
authors.forename: Jun
authors.initials: J
authors.lastname: Gu
authors.forename: Alan
authors.initials: A
authors.lastname: McAlees
authors.forename: Robert
authors.initials: R
authors.lastname: McCrindle
authors.forename: Valerie
authors.initials: V
authors.lastname: Robertson
mesh_terms: D017738:Alkanesulfonic Acids / Q000737:chemistry* / Q000302:isolation & purification*; D045424:Complex Mixtures / Q000737:chemistry; D005459:Fluorides / Q000737:chemistry; D005466:Fluorocarbons / Q000737:chemistry* / Q000302:isolation & purification*; D007536:Isomerism; D009682:Magnetic Resonance Spectroscopy
chemical_list: D017738:Alkanesulfonic Acids; D045424:Complex Mixtures; D005466:Fluorocarbons; C076994:perfluorooctane sulfonic acid; D005459:Fluorides