Septa
The purpose of a septa in a GC system is to isolate the sample flow path from the outside world. The septa provides a barrier that is readily penetrated by the injector needle whilst maintaining internal pressure without causing system contamination. An ideal septa has low bleed and a long lifetime.
Filter Options| GP Grade | EC Grade | MN Grade | HT Grade | Enduro Blue | |
| Features: | • Low temperature applications. |
• Combines significantly longer injection life, low bleed and low injection port adhesion. |
• Premium septa for autosamplers. • Up to 400 injections per septa. • Pre-pierced to reduce coring. |
• Bleed and temperature optimized, combined with outstanding mechanical properties for the highest temperature applications. • Retains softness and pierceability at high temperatures, and low injection port adhesion. |
• For Shimadzu GCs. |
| Material: | Silicone | High temperature silicone | High temperature silicone | BTO silicone | High temperature silicone |
| Durability: | Good | Excellent | Excellent | Excellent | Excellent |
| Resealing: | Good | Excellent | Excellent | Excellent | Excellent |
| Solvent Resistance: | Excellent | Excellent | Excellent | Excellent | Excellent |
| Tear Resistance: | Good | Excellent | Excellent | Excellent | Excellent |
| Max Temperature: | 275°C | 350°C | 350°C | 400°C | 350°C |
AgilentFor Agilent 7890, 6890, 6850, 5890 and 4890
PerkinElmerFor PerkinElmer Autosystem, Clarus 500, 600, 590 and 690
ShimadzuFor Shimadzu GC-2030, GC-2014, GC-2010 and GC-17A
Thermo TraceFor Thermo Scientific TRACE 1300 series GC