title: [Development of a gas chromatographic column system for the on-line analysis of trace tetrahydrofuran in hexane].
abstract: A gas chromatographic system using home-made 7 microns thick cross-linked dimethylpolysiloxane columns for the on-line analysis of trace tetrahydrofuran in hexane in a rubber production facility was developed. The experimental parameters of the column system, including the temperature, flow rate as well as the back-flushing and heart-cutting program were investigated. The total column-switching program was suggested. The system has been successfully operated for more than one year with good resolution, stability and precision (RSD < 5%) in analyzing trace tetrahydrofuran (0-250 x 10(-6), V/V) for industrial process control in the rubber production facility.
authors.affiliation: National Chromatographic R. & A. Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116011, China.
authors.forename: X
authors.initials: X
authors.lastname: Lu
authors.forename: H
authors.initials: H
authors.lastname: Wu
authors.forename: G W
authors.initials: GW
authors.lastname: Xu
authors.forename: A M
authors.initials: AM
authors.lastname: Guan
authors.forename: X J
authors.initials: XJ
authors.lastname: Zhao
authors.forename: Y J
authors.initials: YJ
authors.lastname: Song
authors.forename: T F
authors.initials: TF
authors.lastname: Zhang
authors.forename: B
authors.initials: B
authors.lastname: Liu
mesh_terms: D002849:Chromatography, Gas / Q000295:instrumentation* / Q000379:methods; D004129:Dimethylpolysiloxanes; D005663:Furans / Q000032:analysis*; D006586:Hexanes / Q000737:chemistry
chemical_list: D004129:Dimethylpolysiloxanes; D005663:Furans; D006586:Hexanes; C018674:tetrahydrofuran