Septa
Septa for Headspace Vials from Agilent Technologies
Make sure the septa you choose are chemically compatible with your sample and solvent. Chemical compatibility can vary, based on factors such as solvent concentration, molecular weight, and temperature.
During manufacture, Agilent septa undergo thermal and chemical conditioning to reduce siloxane bleed, which can occur when the septa material is stressed during heating, solvent interaction, or piercing by the autosampler needle.
- Buy
- Specifications
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Cap and Septa Compatibility
PTFE/Silicone* Butyl Temperature range -40 ºC to 200 ºC -50 ºC to 150 ºC Use for multiple injections
Yes No Price Economical Economical Resistance to coring Excellent None Recommended for storage
Yes No Best for Most common HPLC and GC analyses, not
as resistant to coring as P/S/POrganic solvents, acetic acids; impermeable
to gasses*Agilent silicone is peroxide cured, making it more inert and less likely to interact with samples
- Literature
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Agilent Vials and Sample Containment Brochure
Contains details of Agilent's range of vials and closures
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Headspace Septa Technical Overview
Technical overview on qualification of headspace high performance septa by Headspace GC-MS
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