Development of a gas chromatographic column system for the on-line analysis of trace tetrahydrofuran in hexane
Lu, X.; Wu, H.; Xu, G.W.; Guan, A.M.; Zhao, X.J.; Song, Y.J.; Zhang, T.F.; Liu, B.
Se Pu 19(3): 196-199
2001
ISSN/ISBN: 1000-8713 PMID: 12541794 Document Number: 539976
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.