The content expressed in this article is 2ml Vial Septa Selection Guide please feel free to contact me.
Optimise performance and results by choosing the right septum for your application:
PTFE Septa
Exceptional solvent resistance
Only suitable for single injection use – not recommended for sample storage before or after injection
Not resealable
The most economical septa
Maximum service temperature 260°C
PTFE/Silicone Septa
Excellent resealing capabilities – highly recommended for multiple injections and sample storage
Autoclavable and excellent resistance to coring
PTFE chemical resistance until pierced then the septa will have the compatibility of silicone
Temperature range -40°C to 200°C
Pre-slit PTFE/Silicone Septa
Reduces the possibility of coring with blunt tipped needles or for applications using a thin gauge needle
Used to prevent vacuum from forming inside the vial
Temperature range -40°C to 200°C
PTFE/Silicone/PTFE Septa
Recommended for multiple injections due to above average resealing capabilities
Autoclavable and excellent resistance to coring
Recommended for demanding applications such as internal standards, trace analysis or applications where there will be a long time between injections
Temperature range -40°C to 200°C
PTFE/Red Rubber Septa
The most economical septa used in routine analysis
Easy to pierce with moderate resealability
PTFE chemical resistance until pierced then the septa will have the compatibility of rubber
Not recommended when retaining samples for further analysis or for multiple injections
Temperature range -40°C to 110°C
Moulded Polypropylene Septa
Only suitable for single injection use – not recommended for sample storage before or after injection
Not resealable
Temperature range 0°C to 130°C
The above content is 2ml Vial Septa Selection Guide I hope it will help you!
