Septa

Septa are available in a variety of materials and thicknesses. PTFE Natural Rubber are moderately priced seals for GC and HPLC with good chemical properties. They are ideal for multiple injections due to high resealability, but not as easy to penetrate as PTFE/RR. PTFE/High Performance Rubber is a highly pure synthetic red rubber septum that provides a reduced background level for specific GC applications, employing sensitive detectors such as ECD or NPD. PTFE/Silicone Septa (T/S) has high-quality, low background/blank value, 100% synthetic pure silicone septa.

Septa for open top caps

Supplier: EP SCIENTIFIC

These silicone septa with PTFE coating are suitable for VOA vials and bottles with 24-414 open-top cap.

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PTFE/silicone discs, Tuf-Bond™

Supplier: Thermo Fisher Scientific

These discs ensure air-tight, inert seals. They are specifically designed to combine the resealability of silicone with the inertness of PTFE.

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GC septa, low bleed high temperature

Supplier: HAMILTON BONADUZ

Low bleed high temperature septa are designed for the lowest bleed possible at temperatures of up to 400 °C. They can be used in combination with Mass Spectrometers or in applications where septa bleed interferes with trace analysis. These septa are typically used for manual injection applications.

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PTFE/rubber laminated discs

Supplier: Thermo Fisher Scientific

These discs are designed to provide a highly inert and unreactive seal. Constructed of white pharmaceutical rubber with 0,1 mm of PTFE coating bonded to one side, they are excellent for use as cap liners when a highly inert non reactive seal is desired.

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GC septa, TR-Blue

Supplier: Thermo Fisher Scientific

Made of low-bleed silicone, these septa have excellent mechanical properties and are ideal for demanding GC-MS applications.

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Individual septa, Axygen®

Supplier: Corning

Individual septa for 0,5 ml ABI Prism® 310 sequencer tubes.

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GC septa, high temperature septa

Supplier: HAMILTON BONADUZ

These preconditioned PTFE/silicone rubber septa are 3,175 mm thick.

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GC septa, Marathon

Supplier: Thermo Fisher Scientific

Made of low-bleed silicone, these septa have excellent mechanical properties and are ideal for demanding GC-MS applications.

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GC injection port septa

Supplier: Thermo Fisher Scientific

Quality GC septa for all applications. The low bleed BTO septa are ideal for MS applications and have excellent mechanical properties. The TR-Green septa have a long injection lifetime and low injection port adhesion.