Profile: Quadrex Corp. is a manufacturer of gas chromatography consumables and hardware. Our GC consumables include ferrules, septa, injector port liners, carrier gas traps and filters. Our septa technology provides mechanical properties for repeated manual and auto sampler injections & chemical properties which give ideal low bleed characteristics for elevated temperature use. Our gas generators supply nitrogen, hydrogen and zero air gas, which are available with different flow rates and pressures. We offer a complete range of graphite and graphite-Vespel&trade ferrules for capillary column installation which offer a reliable gas tight seal.