title: Compositional surface-layered sorbents for pre-concentration of organic substances in the air analysis.
abstract: We juxtapose methods of synthesis of non-polar surface-layered sorbents on the platform of a carrier, which combines macro-porous coarse-dispersed polytetrafluoroethylene with micro-dispersed activated carbon. Further, we present data about the sorption properties of the said materials alongside perspectives of their analytical applications. Our study established that with respect to efficacy of dynamic sorption from gaseous phases these sorbents outperform bulk-porous analogues in their normal, granular form.
authors.affiliation: Department of Chemistry, St. Petersburg State University, 26 Universitetsky pr., 198504 St. Petersburg, Russia.
authors.forename: O V
authors.initials: OV
authors.lastname: Rodinkov
authors.affiliation: Department of Chemistry, St. Petersburg State University, 26 Universitetsky pr., 198504 St. Petersburg, Russia.
authors.forename: A S
authors.initials: AS
authors.lastname: Bugaichenko
authors.affiliation: Department of Chemistry, St. Petersburg State University, 26 Universitetsky pr., 198504 St. Petersburg, Russia; St. Petersburg National Research University ITMO, 49, Kronverksky pr., St. Petersburg 197101, Russia. Electronic address: vlasov@nonel.pu.ru.
authors.forename: A Yu
authors.initials: AY
authors.lastname: Vlasov
keywords: Activated carbon; Air analysis; Gas chromatography; Pre-concentration; Sorbents; Surface-layer polytetrafluoroethylene (PTFE); Volatile organic compounds