Description
Screw cap for sample vials with pre-slit silicone/PTFE septum is a polypropylene closure for chromatography vials with 9-425 thread. The silicone/PTFE septum is attached to the cap to reduce the risk of detachment when blunt tips are used, while the pre-slit design is pre-perforated to support optimal injection. This combination suits analytical laboratories that need secure sealing together with easier needle penetration during sample introduction. Supplied as a pack of 100 pieces from manufacturer Labbox in the METRIA line, the caps serve as chromatography accessories for standard 9-425 threaded sample vials. Net weight is 1,000 kg. Polypropylene construction, a fixed septum and the pre-slit geometry help maintain practical performance in routine sample preparation and chromatographic workflows where pre-perforated septa are preferred.
This article is part of Vial caps & septa, in Vials, caps & septa.
Key features
- Pack size: 100 pc(s)
- Material: Polypropylene
- Thread: 9-425
- Septum: Pre-slit silicone/PTFE, bonded
- EAN: 8434868106543
- Technical Information Sheet:
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Questions about Screw cap for vials with attached pre-slit silicone/PTFE septa
What is this article?
Screw cap for vials with attached pre-slit silicone/PTFE septa is the article on this page. Luminix Health distributes Labbox for laboratory use. It sits in Vial caps & septa, inside Vials, caps & septa, in Chromatographie.
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 Chromatographie.
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. Articles in stock ship within 2–5 business days. 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.