Description
CHROMAFIL GF-100/25 is a disposable syringe filter fitted with a glass fibre membrane for prefiltration and clarification of samples that contain higher particulate loads. The membrane has a nominal pore size of 1 µm and a diameter of 25 mm, making it suitable as a first filtration step before finer membrane filters or as a stand-alone clarification aid in routine laboratory work. A distinctive colour code—yellow upper housing and black lower housing—allows rapid visual identification of the GF-100/25 type. Packs contain 100 ready-to-use filters from manufacturer Macherey-Nagel and are designed for standard syringe Luer connections, reducing handling compared with reusable holders. Glass fibre media are valued for high dirt-holding capacity and efficient removal of coarser particles from aqueous and many organic sample streams. The units are non-sterile and intended for general laboratory filtration rather than sterile processing. Typical applications include protecting downstream 0,45 µm or 0,2 µm membranes, clarifying turbid extracts, and preparing samples for chromatography or other analytical techniques where a nominal 1 µm glass fibre filter in 25 mm format is required.
This article is part of Syringe filters, in Filtration.
Key features
- Pack size: 100 pc(s)
- Membrane material: Glass fibre
- Pore size: 1 µm (nominal)
- Membrane diameter: 25 mm
- Colour code: yellow top / black bottom
- EAN: 4046681074240
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Questions about CHROMAFIL GF-100/25
What is this article?
CHROMAFIL GF-100/25 is the article on this page. Luminix Health distributes Macherey-Nagel for laboratory use. It sits in Syringe filters, inside Filtration, in Lab consumables.
A syringe filter is a membrane in a plastic housing on a Luer fitting. Pore size, membrane polymer and diameter are the three choices. 0.2 µm is the sterilising and the HPLC-particle cut. 0.45 µm is the coarser clarification. Aqueous and solvent-resistant membranes are different polymers.
Filtration holds back what is larger than the pores and lets the rest through. Paper is the ordinary laboratory filter. A membrane has a stated pore size and a polymer that must survive the solvent. A syringe filter is that membrane in a housing on a syringe. Glass fibre takes a higher dirt load. Ultrafiltration holds back macromolecules and passes salts. The pore size, the chemical compatibility and the volume are the three choices. Laboratory apparatus around filtration is indexed under ISO laboratory apparatus.
Which category should I open next?
The category is Filtration. The sub-category is Syringe filters. The catalogue is Lab consumables.
Shelves beside this one are Filter paper, Sintered glass filter plates & discs, Filter cartridges & capsules, Membrane filters, Glass & quartz fibre filters, Bottle-top & vacuum filtration units, Ultrafiltration & concentrators, Filtration accessories, Extraction thimbles and Dialysis tubing & devices.
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.