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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 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.


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VWR®, Septa ND12

Catalog Number: (548-0185A)
Supplier: VWR Collection
Description: Almost all septa have one laminated side with PTFE (high chemical resistance) and form an inert barrier between carrier material and sample.
UOM: 1 * 25 items
Product Image-548-3315A

VWR®, Septa 18 mm

Supplier: VWR Collection
Description: Almost all septa have one laminated side with PTFE (high chemical resistance) and form an inert barrier between carrier material and sample.

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Product Image-548-0315A

VWR® Septa ND8

Supplier: VWR Collection
Description: Almost all septa have one laminated side with PTFE (high chemical resistance) and form an inert barrier between carrier material and sample.

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GC septa, Thermogreen® LB-2

Supplier: Merck
Description: Ready to use GC septa for inlet temperature of up to 100 to 350 °C.

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GC septa, Thermogreen® LB-1

Supplier: Merck
Description: These septa are suitable for use with 50 to 300 °C inlet temperatures.

Product Image-548-2179A

VWR®, Septa ND22

Supplier: VWR Collection
Description: Almost all septa have one laminated side with PTFE (high chemical resistance) and form an inert barrier between carrier material and sample.

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VWR®, Septa GL 25

Catalog Number: (548-0633A)
Supplier: VWR Collection
Description: VWR®, Septa, Beige silicone/natural PTFE, Hardness: 50° shore A, Thickness: 3,2 mm, Ø: 23 mm
UOM: 1 * 100 items
Product Image-548-0797A

VWR®, Septa ND20

Supplier: VWR Collection
Description: Almost all septa have one laminated side with PTFE (high chemical resistance) and form an inert barrier between carrier material and sample.

Product Image-215-4281

High-temperature silicone cap liner, GL 45, PTFE coated, DURAN®

Catalog Number: (215-4281)
Supplier: DWK Life Sciences
Description: Replacement GL 45 PTFE coated high-temperature silicone cap liner for the aluminium cap.
UOM: 1 * 10 items

Environmentally Preferable


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GC septa

Supplier: Trajan Scientific and Medical
Description: Septa, BTO premium high-temperature centre guide GC septa, Ø: 9 mm, Max. temp.: 400 °C

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CRS GC Septa, Marathon Long-life

Supplier: Trajan Scientific and Medical
Description: Marathon long-life center guide GC septa are ideal for standard manual injection GC and GC/MS.

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General Purpose Blue GC Septas

Supplier: Trajan Scientific and Medical
Description: General purpose blue GC septa, maded of silicone combines significantly longer injection life, low bleed and low injection port adhesion.

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CRS Puresep T GC Septa

Supplier: Trajan Scientific and Medical
Description: Reliabily against the carrier gas pressure in the inlet. Capable of being pierced and resealing time after time without pieces of the septa being deposited in the GC inlet system. Does not contaminate or bleed material into the chromatographic system.

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Advanced Green 3 Low-Bleed GC Septas

Supplier: Trajan Scientific and Medical
Description: Advanced Green 3 low-bleed GC septa is a premium septa for autosamplers in all critical analyses.

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SureSTART™ Septa, 22 mm, Level 2 High-throughput Applications

Supplier: Thermo Fisher Scientific
Description: Level 2 septa are manufactured and tested to ensure low bleeding, robustness, and reproducibility of results for your routine GC-MS and LC-MS analyses.

New Product

Product Image-555-8185

GC septa in blister packs

Supplier: Thermo Fisher Scientific
Description: Quality GC septa for all applications. The range is now packaged into blister packaging for enhanced product cleanliness.

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Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us on 0800 22 33 44.
Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us on 0800 22 33 44
Additional Documentation may be needed to purchase this item. A VWR representative will contact you if needed.
Additional Documentation may be needed to purchase this item. A VWR representative will contact you if needed.
This product has been blocked by your organisation. Please contact your purchasing department for more information.
The original product is no longer available. The replacement shown is available.
Product(s) marked with this symbol are discontinued - sold till end of stock. Alternatives may be available by searching with the VWR Catalogue Number listed above. If you need further assistance, please call VWR Customer Service on 0800 22 33 44.
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