18mm Screw Closures
Also because the 18mm screw headspace vial needs to be used on the autosampler, the 18mm screw magnetic closures have a center hole for easy sampling. Septa uses a composite method of PTFE and Silicone. The composite process is Aijiren¡¯s exclusive patent and does not use any adhesives. Compound, compared to septa using adhesive, the texture is softer and has less influence on the experiment. The 18mm screw magnetic closures produced by Aijiren are the most suitable partner for gas chromatography.
The 18mm screw magnetic closures produced by Aijiren are often applied to the 18mm screw headspace vial. Because the headspace vial is often used in gas chromatography analysis, the tightness requirements of the vial and closures are very high. The design of 18mm screw magnetic closures perfectly meets the characteristics. The first is the Cap made of magnetic metal material, which is convenient for automatic sampling, and the magnetic metal can be properly attached to the position of the autosampler. The tightness of the metal ensures that Cap will not leak any samples including gas.