title: Observation of sorptive losses of volatile sulfur compounds during natural gas sampling.
abstract: The reason for the compound-dependent over-estimation of the recoveries of several volatile organic sulfur compounds when using a Silcosteel cylinder for sample storage as reported earlier was examined. From the different possible sources of errors that were taken into consideration, the silicone tubing, which was used to fill a standard Tedlar sample bag for calibration, was identified as the cause of the artefact. The comparison of different tubing materials showed that PTFE is the best choice since it causes only minor losses (<10%) of propyl- and butylmercaptans.
authors.affiliation: Institute of Analytical Chemistry, Vienna University of Technology, Austria.
authors.forename: Michael
authors.initials: M
authors.lastname: Sulyok
authors.forename: Christina
authors.initials: C
authors.lastname: Haberhauer-Troyer
authors.forename: Erwin
authors.initials: E
authors.lastname: Rosenberg
mesh_terms: D005579:Fossil Fuels / Q000032:analysis*; D013457:Sulfur Compounds / Q000737:chemistry*; D014835:Volatilization
chemical_list: D005579:Fossil Fuels; D013457:Sulfur Compounds