Suggestions for injector needles or practices that dont destroy the septum?
Hello reddit, I noticed lately that my inlet liner wool has been capturing bits of septum. I also see it in my wash vials. Do you guys have any recommendations for how to not let this happen? I have a feeling its because of the needle itself, so if I need to get new ones I would like to get the right ones.
The septa i use are Restek #27090. The needles we use currently are a bit of an unknown, but they are either Agilent #5181-3353 or Restek #21228.
For injection method its 1uL draws with 1 wash before and 1 wash after the sample of EtOH/MeOH respectively at a fast injection of like, 300/6000 draw/dispense speed.
Posted Jul 10, 2026, 7:33 PM UTC
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