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HPLC & GC Accessories

GC septa, GC ferrules, and other GC & HPLC accessories

The replacement septa, ferrules, and other accessories you choose for your HPLC or GC can impact the quality of the system’s output.

Contamination from GC septa, for example, can be a persistent source of data biasing.

The cliche is true. You get what you pay for.

The GC septa from Hamilton below have an average life of about 100 injections.

The GC septa from SGE are the purest on the market - producing an average of 4x fewer contaminant peaks than low cost brands and about 20% fewer peaks than alternative high performance brands (based on 3rd party testing).


Find all your supplies for Agilent, PerkinElmer, HP, Shimadzu, and Varian below.

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GC Septa, Inlet Liners, Ferrules

GC Septa, Inlet Liners, Ferrules

HPLC Accessories

HPLC Accessories

HPLC Solvent Bottles

HPLC Solvent Bottles

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Frequently asked questions

Q: What is the purpose of the rigid PTFE backing on Hamilton high temperature GC septa?
A: The rigid surface helps prevent shedding and tearing, whereas the softer silicone rubber provides a reliable seal. The septa should be installed with the rigid yellow surface facing up.


Q: What precautions should I take when installing GC septa and other parts?
A: Always handle GC septa, inlet liners, liner o-rings, and inlet seals with clean, solventrinsed tweezers. Touching them wiith bare hands or gloved hands will introduce contamination to your process.


Q: How often should I replace GC septa and inlet liners?
A: MilliporeSigma recommends the following schedule:


How well do SGE septa perform? All about SGE septa purity JG Finneran solutions
GC Septa on GC-MS Replace daily
GC Septa Replace every 100 injections or 3 days
Inlet liners Inspect daily
Liner O-Rings Every 5 liners
Inlet Seals Every column change or every 6 months
Injection Syringes, Manual Every 2 months
Injection Syringes, Autosampler Every 6 months