Description
Micro insert narrow opening 0,25 mL is a clear glass insert intended for use in narrow-opening vials when only small sample volumes are available. With an outer diameter of 5 mm and an outer height of 31 mm, the insert sits securely inside compatible sample vials and presents a flat bottom for stable positioning. The 0,25 mL nominal volume concentrates limited sample material at the base, improving accessibility for needles and micropipettes during injection or transfer steps. Supplied in packs of 100 pieces from manufacturer Macherey-Nagel, these clear inserts support visual checks of fill level and residual volume. They are a practical accessory for chromatography, autosampler work and general laboratory sample preparation where reduced dead volume and efficient use of scarce samples matter. The narrow-opening geometry matches corresponding vials, helping maintain alignment and sealing performance in routine analytical workflows that rely on consistent insert dimensions and transparent glass construction.
This article is part of Vial inserts, in Vials, caps & septa.
Key features
- Pack size: 100 pc(s)
- Nominal volume: 0,25 mL
- Outer diameter: 5 mm
- Height: 31 mm
- Colour: clear
- EAN: 4046681089824
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Questions about Insert small o-0.25, c, 5x31, flat
What is this article?
Insert small o-0.25, c, 5x31, flat is the article on this page. Luminix Health distributes Macherey-Nagel for laboratory use. It sits in Vial inserts, inside Vials, caps & septa, in Chromatography equipment.
A vial insert is a small glass or plastic cup inside a standard vial, so a few microlitres stand high enough for the needle. Volume, glass or polypropylene, and whether it has a spring or a foot are the choices. The wrong insert sits too low and the needle hits the bottom.
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 inserts. The catalogue is Chromatography equipment.
Shelves beside this one are Vial caps & septa, Chromatography accessories, Autosampler vials and Crimpers & decappers.
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.