Description
Spectra/Por® 4 dialysis membrane is a laboratory dialysis tubing membrane designed for separation and buffer-exchange applications based on molecular weight cut-off. This grade offers an MWCO of 12000–14000 and a flat width of 45 mm, making it suitable for desalting, sample clean-up and controlled diffusion of small solutes while retaining larger macromolecules. The membrane supports common dialysis workflows in biochemistry, molecular biology and analytical sample preparation. Supplied as 1 piece, it provides a practical format for setting up individual dialysis experiments or small-batch processing. With a product weight of 0,250 kg, the unit is straightforward to store and handle in the laboratory. Available from manufacturer REPLIGEN under the Spectra/Por® 4 line, this membrane is widely used where reproducible MWCO performance and defined geometry are required. It fits standard dialysis setups for proteins, polymers and other macromolecular samples that must be equilibrated or purified against a chosen external buffer without complex equipment.
This article is part of Ultrafiltration & concentrators, in Filtration.
Key features
- Pack size: 1 pc
- Product type: Dialysis membrane
- Brand: Spectra/Por® 4
- MWCO: 12000–14000
- Width: 45 mm
- Weight: 0,250 kg
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Questions about Spectra/Por® 4, dialysis membrane, MWCO 12000 - 14000, width 45 mm, 1 unit(s)
What is this article?
Spectra/Por® 4, dialysis membrane, MWCO 12000 - 14000, width 45 mm, 1 unit(s) is the article on this page. Luminix Health distributes REPLIGEN for laboratory use. It sits in Ultrafiltration & concentrators, inside Filtration, in Lab consumables.
An ultrafiltration device holds back macromolecules above a stated molecular-weight cutoff and passes salts and water. It concentrates a protein or exchanges its buffer. The cutoff, the volume and whether it is a centrifugal device or a stirred cell are the specification. A 0.2 µm syringe filter does not do this.
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 Ultrafiltration & concentrators. The catalogue is Lab consumables.
Shelves beside this one are Filter paper, Sintered glass filter plates & discs, Syringe filters, Filter cartridges & capsules, Membrane filters, Glass & quartz fibre filters, Bottle-top & vacuum filtration units, Filtration accessories, Extraction thimbles and Dialysis tubing & devices.
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.
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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.