9Luong J, Gras R, Tymko R. Innovations in High - Pressure Liquid Injection Technique for Gas Chromatography: Pressurized Liquid Injection System. J Chromatogr Sci ,2003,41 (10) :550 ~ 559.
10de Zeeuw J, Duvekot C, Peene J, et al. GC:A Review of the State -of - the - Art Column Technologies for the Determination of ppm to ppb Levels of Oxygenated, Sulfur, and Hydrocarbon Impurities in C1 ~ C5 Hydrocarbon Streams. J Chromatogr Sci, 2003,41(10):535 ~ 544.