Description
AG3 Septa N 11, CenterGuide™ are precision septa designed for gas chromatography (GC) workflows where reliable sealing and guided needle entry matter. With a diameter of 11 mm, these N 11 septa suit standard GC inlet configurations and help maintain consistent sample introduction during routine and high-throughput analyses. The CenterGuide™ design supports controlled needle penetration, reducing the risk of coring and improving septum lifetime under repeated injections. Supplied in packs of 25 pc(s) and weighing 0,030 kg per pack, they are practical consumables for busy chromatography laboratories. These AG3 septa from manufacturer Carl ROTH fit within GC accessory ranges used for analytical separations in research, quality control, and method development. They support stable injector performance when paired with compatible vials, liners, and inlet systems. Ideal for laboratories standardising on N 11 formats, the septa provide a straightforward replacement option for daily GC operation without unnecessary complexity in handling or installation.
This article belongs on Vial caps & septa, in Vials, caps & septa.
Key features
- Pack size: 25 pc(s)
- Product type: AG3 Septa N 11
- Design: CenterGuide™
- Diameter: 11 mm
- Weight: 0,030 kg
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Questions about AG3 Septa N 11, CenterGuide (TM), Ø 11 mm, 25 unit(s)
What is this article?
AG3 Septa N 11, CenterGuide (TM), Ø 11 mm, 25 unit(s) is the article on this page. Luminix Health distributes Carl Roth 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?
The technical information on this page is the manufacturer's sheet. Read that, not a rewritten specification.
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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.