title: Determination of vinyl chloride monomer residue in poly(vinyl chloride) at the parts-per-billion level with an automatic purge-and-trap technique.
abstract: A method for the determination of vinyl chloride residue in poly(vinyl chloride) using a commercial purge-and-trap ancillary unit has been developed. Concentrations lower than 10 ppb (10(9] with relative standard deviations in the region of 10% in up to 24 samples are detectable with fully automatic operation without operator attendance. With multiple extraction of the same sample an external standard is used; the matrix does not have any influence on the recovery of vinyl chloride.
mesh_terms: D002849:Chromatography, Gas; D007202:Indicators and Reagents; D011143:Polyvinyl Chloride / Q000032:analysis*; D011145:Polyvinyls / Q000032:analysis*; D014752:Vinyl Chloride / Q000032:analysis*; D014753:Vinyl Compounds / Q000032:analysis*
chemical_list: D007202:Indicators and Reagents; D011145:Polyvinyls; D014753:Vinyl Compounds; D011143:Polyvinyl Chloride; D014752:Vinyl Chloride