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Cap with Septa for 13mm HPLC Screw Vial

*Product Description: Caps are made of high-quality polypropylene to exact manufacturing tolerances and lined in a controlled manufacturing environment; Cap colors are available in black only; Ava...
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*Product Description:

  • Caps are made of high-quality polypropylene to exact manufacturing tolerances and lined in a controlled manufacturing environment;
  • Cap colors are available in black only;
  • Available as closed or open top screw seals with 13-425 thread;
  • Our septa use only the highest quality materials to ensure proper function and can be pre-slit to ease needle penetration;

Aijiren Septa has the following characteristics:

  1. Teflon and silicone rubber or ultra-pure silicone are used as raw materials to ensure that the septa are non-toxic; to ensure excellent functions, it is particularly suitable for gas chromatography, and to ensure that the septum does not fall into the sample vial during the injection process;
  2. The adhesive-free bonding process is used to combine the polytetrafluoroethylene membrane and the silicon rubber or silicone bond together to maintain the excellent characteristics of the two materials. The polytetrafluoroethylene layer of the composite septum is in contact with the reagent. It is chemically inert and resistant to acid, alkali, temperature, and adhesion. It does not work with concentrated acid, concentrated alkali, or strong oxidants even at high temperatures. At the same time, the elasticity of silicone rubber or silicone layer can ensure sealing performance.
septa for 13mm HPLC vial
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