[Development of a gas chromatographic column system for the on-line analysis of trace tetrahydrofuran in hexane].
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.
Lu
X
X
National Chromatographic R. & A. Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116011, China.
Wu
H
H
Xu
G W
GW
Guan
A M
AM
Zhao
X J
XJ
Song
Y J
YJ
Zhang
T F
TF
Liu
B
B
D002849:Chromatography, Gas / Q000295:instrumentation* / Q000379:methods; D004129:Dimethylpolysiloxanes; D005663:Furans / Q000032:analysis*; D006586:Hexanes / Q000737:chemistry
D004129:Dimethylpolysiloxanes; D005663:Furans; D006586:Hexanes; C018674:tetrahydrofuran