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.

	P/N	Color	Description
	201-35584	White	Standard Type, General-purpose septum  • Only suibtable for low temperature applications.  • Maximum temperature (INJ setting temperature): 200°C  • 20 pcs.
	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.
	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.
	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.
	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.
	980-13409	Red	Pyrolysis Septum    • Surface treated septum for analysis with the Pyrolysis-GCMS.  • Maximum temperature (INJ setting temperature): 400°C  • 5 pcs.