title: Gas chromatographic retention behaviour of polychlorinated naphthalenes on non-polar, polarizable, polar and smectic capillary columns.
abstract: Six commercially available gas chromatography columns were investigated for performance in separating polychlorinated naphthalenes (PCNs). Retention behaviour on the investigated phases is compared and retention data for 40 congeners on a 5% phenyl-methylpolysiloxane column is reported. For all columns, except the octylmethylpolysiloxane and the smectic, a relation between substitution pattern and retention was found, where substitution in adjacent positions as well as alpha-substitution increase the retention time. A mathematical model based on these findings was developed and used to predict the relative retention of all congeners from di- up to octachloronaphthalene, on a 5% phenyl-methylpolysiloxane column.
authors.affiliation: Laboratory for Environmental Analytical Chemistry, Stockholm University, Solna, Sweden.
authors.forename: U
authors.initials: U
authors.lastname: Järnberg
authors.forename: L
authors.initials: L
authors.lastname: Asplund
authors.forename: E
authors.initials: E
authors.lastname: Jakobsson
mesh_terms: D002849:Chromatography, Gas / Q000295:instrumentation; D006843:Hydrocarbons, Chlorinated / Q000737:chemistry*; D009281:Naphthalenes / Q000737:chemistry*
chemical_list: D006843:Hydrocarbons, Chlorinated; D009281:Naphthalenes