Description
11 mm high-performance GC septum (ultra pure), red, is a durable, universal gas-chromatography septum formulated for demanding inlet conditions and extended injection cycles. Rated for at least 450 injections and inlet temperatures up to 400 °C, it supports robust routine and high-temperature GC methods. A centre guide improves needle alignment on entry, helping reduce coring and mis-piercing during manual or autosampler use. Low bleed characteristics limit siloxane outgassing that can interfere with sensitive detectors, while the formulation is designed for excellent removability from the injection port after service. Supplied as 25 pc(s) per pack from manufacturer Altmann Analytik, these red ultra-pure septa fit standard 11 mm GC inlet geometries used across pharmaceutical, environmental, petrochemical, and research laboratories. The combination of thermal stability, low background contribution, and guided needle entry makes them a practical choice for laboratories seeking reliable septum performance without frequent change-outs during extended analytical sequences.
This article is part of Vial caps & septa, in Vials, caps & septa.
Key features
- Pack size: 25 pc(s)
- Product type: High-performance GC septum
- Diameter: 11 mm
- Grade: Ultra pure
- Colour: Red
- Injections: At least 450
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Questions about 11 mm high performance GC septum (ultra pure), red, 25 pc/PAK
What is this article?
11 mm high performance GC septum (ultra pure), red, 25 pc/PAK is the article on this page. Luminix Health distributes Altmann Analytik for laboratory use. It sits in Vial caps & septa, inside Vials, caps & septa, in Chromatography equipment.
A vial cap and a septum have to match the vial neck: crimp, screw or snap, and the diameter. The septum material, PTFE/silicone or rubber, decides chemical resistance and how many times a needle can pierce it. A septum that sheds into the solvent becomes ghost peaks.
An autosampler vial is the small closed bottle a chromatograph picks up. The neck is crimp, screw or snap, and the cap and the septum have to be that neck. The septum is the part the needle pierces. A soft septum reseals. A septum that is wrong for the solvent swells or sheds particles into the sample. Inserts reduce the volume when the sample is scarce. The separation they feed is described with IUPAC names and PubChem data.
Which category should I open next?
The category is Vials, caps & septa. The sub-category is Vial caps & septa. The catalogue is Chromatography equipment.
Shelves beside this one are Chromatography accessories, Autosampler vials, Crimpers & decappers and Vial inserts.
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Delivery across Europe, two to five days when in stock. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.
