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
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.
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
 Standard type 201-35584 White
Standard Type, General-purpose septum

 • Only suibtable for low temperature applications.
 • Maximum temperature (INJ setting temperature): 200°C
 • 20 pcs.
 LL Septum 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.
 HT Septum 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.
 Low-bleed Septum 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.
Enduro Blue Septum 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.
Pyrolysis
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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