Inlet Septa
Injection Port Septum
Even when a low bleed septum is used, bleeding is not totally eliminated. The type of bleeding differs according to the septum type and bleeding appears as different peaks on a chromatogram. In high-sensitivity analysis, you need to select and use a septum that does not cause bleeding at a position where interference occurs with the target compound.
When using an autosampler, it is recommended to exchange the septum after about 100 injections. If the injection is done manually or the outer diameter of the needle is thick, the septa should be replaced more often.
Recommended Septum
P/N | Color | Description | |
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227-35004-01 | Green |
Premium Green Septa
• Low-bleed septum, combines significantly longer
injection life, low bleed and low injection port adhesion. • Maximum temperature (INJ setting temperature): 350°C • 50 pcs. |
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227-35511-01 | Red |
Xtra Life Septum
• Extra long-life septum, lasts up to 10x longer than
a standard septum. • Maximum temperature (INJ setting temperature): 400°C • 25 pcs. |
Additional Options
P/N | Color | Description | |
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201-35584 | White |
Standard Type, General-purpose septum
• Only suibtable for low temperature applications. • Maximum temperature (INJ setting temperature): 200°C • 20 pcs.
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221-48972-91 | Blue |
LL Septum - Long Life Type
• Provides significant durability improvements compared to a
conventional low-bleed septum, offering both low bleed and long life. • The problem of sticking to the vaporizing chamber during continuous use at high temperatures experienced with a conventional septum has also been eliminated. • Suitable for high-sensitivity analysis • Maximum temperature (INJ setting temperature): 450°C • 20 pcs.
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221-48398-91 | Brown |
HT Septum - High Temperatur Type
• Using this septum alleviates the problem of reduced durability
when the vaporizing chamber is used continuously at 450°C. • Compared to the LL septum, the increase in bleed when used at high temperatures is kept at a lower level. • The problem of sticking to the vaporizing chamber during continuous use at high temperatures experienced with a conventional septum has also been eliminated. • Suitable for high-sensitivity analysis at high temperatures • Maximum temperature (INJ setting temperature): 450°C • 20 pcs.
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221-76650-01 | Green |
Low-bleed Septum
• This septum is least influenced by a plasticizer. Better prevents
septum coring. • Low-bleed, suitable for high-sensitivity analysis • 25 pcs.
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221-75180 | Light blue |
Enduro Blue Septum
• Low-bleed, suitable for high-sensitivity analysis at
high temperatures • Maximum temperature (INJ setting temperature): 350°C • 50 pcs.
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980-13409 | Red |
Pyrolysis Septum
• Surface treated septum for analysis with the Pyrolysis-GCMS.
• Maximum temperature (INJ setting temperature): 400°C
• 5 pcs.
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