Silicone septa, also known as a silicone rubber septum or stopper, is a sealing component used in laboratory settings, particularly in chromatography and sample storage applications. It is a circular disc-shaped piece made of silicone rubber that is placed within the cap of a vial or container to create a secure and leak-proof seal.
Silicone septa are commonly used in conjunction with screw caps or crimp caps to seal vials used in gas chromatography (GC) and other analytical techniques. They are typically placed between the cap and the vial opening, and when the cap is tightened or crimped, the septa forms a barrier that prevents leakage or contamination of the sample.
