laboratory headspace gas chromatography with PTFE septa 2021 - 08 - 19 Headspace Gas Chromatography | PerkinElmer 2021 - 07 - 06 Kit includes: Elite-1301 30 M x 0.53 mm x 3.0µm column, Zero Dilution Glass Outer Liner, Zero Dilution Glass Inner Liner, Polyimide uncoated deactivated tubing, 5 M x 0.18 mm, 22 mL headspace vials, 19 mm assembled cap and septa PTFE/silicone and 20