Description
Short screw cap ND9 in red polypropylene (PP) with a 1,0 mm silicone white/PTFE blue slit septum is intended for reliable vial closure in analytical autosampler work. The septum combines synthetic rubber RedRubber/PTFE as a cost-effective match to instrument-manufacturer quality. Softer than natural rubber for secure penetration, it is not suited to unrestricted multiple injections in the same way as natural rubber grades. The screw cap adopts a crimp-cap style profile, so it remains compatible with robotic gripper arms. A slit septum helps limit vacuum formation inside the vial when repeated injections are performed. From manufacturer Altmann Analytik, this short-thread ND9 closure is supplied in packs of 1000 pc(s) for high-throughput laboratory use. Pre-cut concepts in the related range cut only the silicone carrier in a Y-form while leaving the PTFE lamination intact, reducing concentration fluctuations sometimes seen with fully slit septa; this article is the slit silicone white/PTFE blue configuration. It offers an alternative to selected ND9 caps from Agilent, Waters, National Scientific, Finneran and SUN/SRI International for HPLC and GC sample introduction workflows.
This article is part of Vial caps & septa, in Vials, caps & septa.
Key features
- Pack size: 1000 pc(s)
- Cap type: Short screw cap ND9
- Cap material: Polypropylene (PP), red
- Septum: 1,0 mm silicone white/PTFE blue
- Septum style: Slit
- Septum construction: Synthetic rubber RedRubber/PTFE
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Questions about ND9 PP Short Thread Cap, red, 1,0mm
What is this article?
ND9 PP Short Thread Cap, red, 1,0mm 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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.