title: Characterization of the sorption of gaseous and organic solutes onto polydimethyl siloxane solid-phase microextraction surfaces using the Abraham model.
abstract: Water-to-polydimethylsiloxane (PDMS) and gas-to-PDMS sorption coefficients have been compiled for 170 gaseous and organic solutes. Both sets of sorption coefficients were analyzed using the Abraham solvation parameter model. Correlations were obtained for both "dry" headspace solid-phase microextraction and conventional "wet" PDMS coated surfaces. The derived equations correlated the experimental water-to-PDMS and gas-to-PDMS data to better than 0.17 and 0.18 log units, respectively. In the case of the gas-to-PDMS sorption coefficients, the experimental values spanned a range of approximately 11 log units.
authors.affiliation: Department of Chemistry, P.O. Box 305070, University of North Texas, Denton, TX 76203-5070, USA.
authors.forename: Laura
authors.initials: L
authors.lastname: Sprunger
authors.forename: Amy
authors.initials: A
authors.lastname: Proctor
authors.forename: William E
authors.initials: WE
authors.lastname: Acree
authors.forename: Michael H
authors.initials: MH
authors.lastname: Abraham
mesh_terms: D000327:Adsorption; D004129:Dimethylpolysiloxanes / Q000737:chemistry*; D008956:Models, Chemical; D005741:Noble Gases / Q000302:isolation & purification; D009930:Organic Chemicals / Q000302:isolation & purification*; D012828:Silicones / Q000737:chemistry*; D052617:Solid Phase Microextraction / Q000379:methods*; D012996:Solutions / Q000737:chemistry*
chemical_list: D004129:Dimethylpolysiloxanes; D005741:Noble Gases; D009930:Organic Chemicals; D012828:Silicones; D012996:Solutions; C013830:baysilon