Septa

Septum fås i forskellige materialer og tykkelser. PTFE/naturligt gummi er moderat prissatte tætninger til GC og HPLC med gode kemiske egenskaber. De er ideelle til flere injektioner på grund af høj resealability, men ikke så lette at penetrere som PTFE/RR. PTFE/high performance gummi er et meget rent syntetisk rødt gummiseptum, der giver reduceret baggrundsniveau til specifikke GC-applikationer med følsomme detektorer som ECD eller NPD. PTFE/silikone (T/S) septa er af høj kvalitet, lav baggrund og består af 100 % syntetisk rent silikone.

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GC septa in blister packs

Supplier: Thermo Fisher Scientific

Quality GC septa for all applications. The range is now packaged into blister packaging for enhanced product cleanliness.

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Septa for 20 mm stoppers, level 2 high-throughput applications, SureSTART™

Supplier: Thermo Fisher Scientific

Use Thermo Scientific™ SureSTART™ 20 mm stoppers with crimp vials that have a 20 mm opening and a secure push fit, including our SureSTART 20 mm crimp headspace vials (level 2).

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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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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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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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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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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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Individuel septa, Axygen®

Supplier: Corning

Individuel septa til 0,5 ml ABI Prism® 310 Sequencer rør.

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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.