Description
Rotilabo® fine screw thread ND18 vials are brown glass sample vials with a 20 ml capacity and external dimensions of Ø 22,5 × L 75,5 mm. The amber-brown glass body is combined with an ND18 fine screw thread neck for use with compatible screw caps in liquid chromatography applications. Brown glass is widely selected when reduced light transmission is preferred during sample holding and transfer. These vials support HPLC and related LC work, including LC-MS sample handling, where a standardised ND18 fine-thread format is specified. Each pack contains 100 pieces and has a stated weight of 1,631 kg, which simplifies inventory planning for chromatography consumables. Available from manufacturer ROTH SELECTION as part of the Rotilabo® line, the vials provide a uniform vessel geometry for autosampler and laboratory workflows that rely on ND18 fine screw thread closures. Volume, dimensions and thread designation match common HPLC vial practices, allowing laboratories to keep brown-glass ND18 vessels aligned with existing cap and septum systems used in routine chromatographic sample preparation.
This article is part of Vial caps & septa, in Vials, caps & septa.
Key features
- Pack size: 100 pc(s)
- Brand: Rotilabo®
- Product type: Fine screw thread ND18 vials
- Material: Brown glass
- Volume: 20 ml
- Dimensions: Ø 22,5 × L 75,5 mm
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Questions about Rotilabo®-fine screw thread ND18 vials, brown glass, 20 ml, Ø 22.5 x L 75.5 mm
What is this article?
Rotilabo®-fine screw thread ND18 vials, brown glass, 20 ml, Ø 22.5 x L 75.5 mm 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.