Septums
Injection Port Septum
Description
P/N
Color
Description
Standard type (20 pcs)
• General-purpose septum • Maximum temperature (INJ setting temperature): 250 °C
201-35584
White
Provides signi cant 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 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
LL Septum (long life type, 20 pcs)
221-48972-91
Blue
HT Septum (high temp type, 20 pcs)
221-48398-91
Brown
Low-bleed Septum (25 pcs)
This septum is least in uenced by a plasticizer. Better prevents septum coring &
221-76650-01
Green
• Low-bleed, suitable for high-sensitivity analysis • Maximum temperature (INJ setting temperature): 340°C
Enduro Blue Septum (50 pcs)
• Low-bleed, suitable for high-sensitivity analysis at high temperatures • Maximum temperature (INJ setting temperature): 350°C
221-75180
Light Blue
Premium Green Septa (50 pcs)
• Low bleed, highly robust (max. usable temp. 350 °C ) • High durability, proper sealing and good resistance to most chemical solvents. • Useful for trace analysis and other applications where high sensitivity is critical
227-35004-01
Light green
Perforated septum for HS-10
• For HS-10 only • To ensure cleanliness and inertness • Maximum temperature (INJ setting temperature): 250 °C
221-76863-96
White
Low-bleed septum is not completely free of bleeding. The type of bleeding that occurs varies with the septum, and results in different patterns on chromatograms. In the case of high-sensitivity analysis, it is necessary to select a septum whose bleeding will not occur at a point that interferes with the peak of the target compound. Conditioning for several hours between 200°C and 250°C after extraction with hexane may help to reduce bleeding.
In the case of using a syringe for AOC, it is recommended to exchange the septum after about 100 injections. If the outside diameter of a needle of a gastight syringe is thick, it is recommended to exchange after about 50 injections.
Pg C-72
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