Septa Selection Guide
PTFE
Recommended for single injection application.
Ideal for use in MS applications
Excellent solvent resistance and chemical compatibility
Does not reseal upon punching
Not for Long-term sample storage
PTFE/Silicone
Recommended for multiple injection and sample storage
Excellent resealing
PTFE chemical resistance until punctured, then will have the
chemical compatibility of silicone
Working temperature range from -40°C to 200°C
Pre-slit PTFE/Silicone
Prevent vacuum formation in vials
Eliminates coring from bottom draw-port needles
Good resealing capabilities
Recommended for multiple injections
PTFE chemical resistance until punctured, then will have the
chemical compatibility of silicone
Working temperature range from -40°C to 200°C
Vials Selection Guide
Type 1, 51-expansion borosilicate glass
type-2, 33- expansion glass
Deactivated glass (DV)
Treated with gas phase reactive organosilane to produce a
hydrophobic glass surface. Can be stored indefinitely.
Headspace Vials
Uniform glass thickness which insures even heat distribution for
consistent sampling reliability.
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