snap closures

The Snap Cap is made of polypropylene, and the raised part of the Cap is very convenient to be stuck in the groove of Vias to ensure fixation. Septa is made of Silicone and PTFE adhesive-free composite. It is soft and easy to puncture. It is very suitable for automatic sampling. The side of PTFE in Septa faces the inside of Vias, sealing without affecting the sample.

The Cap of Closures in the picture has a Center Hole, which is convenient for Autosampler to perform needle sampling. If you are worried about the difficulty of automatic injection needle sampling, you can also consider purchasing a pre-slit septa. This type of septa is divided into a cut and a cross The two types of incisions are especially useful for blunt circular injection needles.