Septum material of our autosampler caps


ms-Pure septum: non-pigmented silicone/PTFE septum

With the increasing sensitivity of the analytical instruments, extractable substances from the septum may contaminate the sample. The ms-Pure silicone/PTFE septum is produced from a natural non-pigmented silicone/PTFE. Tests show that it is 60 % cleaner than „standard“ silicone/PTFE septums on the market.

  • non-pigmented silicone of highest quality
  • low bleeding
  • resists coring
  • excellent re-seal ability
  • intended for multiple injections
  • low compression set for storage reliability

This septum is available with all types of autosampler vial caps including headspace.

 


red/white silicone/PTFE septum

When septum and caps were regularly assembled by hand, it helped to see at a glance which side of the septum was PTFE lined. Therefore the silicone and PTFE had a different pigmentation. Today, this pigmentation may interfere with the analysis due to the highly sensitive analytical instruments.

This septum is available with all types of autosampler vial caps including blueLine.


Rubber/PTFE septum

Rubber/PTFE septum was established for routine analysis when siliocne/PTFE septums were much more expensive than today.

This septum is available with aluminium crimp caps.
Our aluminium crimp caps G003-AC*-Ru/Te have a red natural rubber/PTFE septum, the blueLine aluminium crimp caps a red butyl rubber/PTFE septum.