Gas chromatograph accessories are parts and consumables for installing, operating, and maintaining GC instruments in analytical laboratories. Types include septa, inlet liners, FID jets, ferrules, and pyrolysis-GC accessories; some components use silicone, borosilicate glass, or graphite.
A graphitized carbon black (GCB) can be non-porous or porous. The graphitization process results in a highly pure surface with great adsorption and desorption (if required) properties.