Polypropylene Screw Closures - Polypropylene screw cap with precision-fit septa provide an evaporation-proof seal. Bi-layer include silicone and PTFE. Silicone septa for multiple injections. PTFE-lined screw cap for organic samples. Screw caps provide an inert, airtight seal and direct puncture-access to samples with a syringe needle.
The snap Closures is an extension of the crimp cover sealing system. By squeezing the septum between the glass bottle and the stretched plastic cap, the plastic cap is stretched to the edge of the sample bottle to form a seal. The advantage of the plastic snap cover is that it can be assembled without tools. The buckle cover is suitable for short-term storage, and the sealing performance is not good enough, so be careful when using it.
Crimp Caps squeeze the septum between the rim of the glass vial and the crimped aluminum cap. This forms an excellent seal preventing evaporation. The crimp cap vial requires crimping tools to carry out the sealing process. Crimp Closures N11 are also universally suitable with regard to autosampler compatibility, however, they are not as safe and convenient in their closing technique as the screw closures N 9 (9mm) 2ml vials and closures.
Aijiren's exclusive adhesive-free bonding process does not require the introduction of adhesives. The septum retains the excellent resilience properties of silicone rubber or silicone. It is softer than the septum of the bonding process and is convenient for the needle of the autosampler Better penetration.
Aijiren has long-term courier and freight companies. Aijiren has transported goods to more than 70 countries and regions around the world for more than ten years. Therefore, after the customer places an order, Aijiren will arrange factory production as soon as possible. If there is a stock, it will arrange packaging and transportation to ensure that it will be shipped to you in the shortest time.