Filtration Membrane Discs
Thin, precut membrane rounds for high-throughput, fast filtration of liquid and gas samples. Gridded and non-gridded discs. Various materials including mixed cellulose ester, polycarbonate, PTFE, nylon, and PVDF. For air monitoring/analytical research.
Sizes
Filter membranes are made in a range of diameters, typically designed to fit a specific holder or manifold.
Materials
Filter membrane can be made from cellulose, mixed cellulose esters (MCE), polyvinylidene fluoride (PVDF), polyethersulfone (PES), polyvinyl chloride (PVC), polytetrafluoroethylene (PTFE), nylon, polycarbonate (PC), polyester, polyethylene terephthalate (PET), and polypropylene (PP). Other membrane materials include aluminum oxide, gelatin, porcelain, and glass.
Pore Size
The size of membrane pores determines which particles will be retained by the filter. A pore size of 0.2 µm is small enough to remove microbes from solutions; a 0.45 µm ore size can remove larger particulates.
Color and Grids
White membrane filters may be plain or marked with square grids (outlined in black) that can help with enumerating particles. Gridded or plain black membrane filters may be helpful when filtering light-colored particulates.
Sterility
Filter membranes may be pre-sterilized or may be sterilized using ethylene oxide, gamma irradiation, or autoclaves. The need for sterility is determined by the application, which are many and varied:
- Light microscopy samples
- Cytology sample preparation
- Electron microscopy samples
- Air quality and other environmental monitoring
- Water analysis and water quality testing
- Microbiology colony counting and quality control
- Chemotaxis
- Sterile preparation of buffers, tissue culture media, microbiological media, and other biological fluids
GVS Polycarbonate Track Etched (PCTE) Membrane, Hydrophilic, Disc, 0.08 μm
GVS Polycarbonate Track Etched (PCTE) Membranes are hydrophilic or hydrophobic and available in pore sizes from 0.01 to 20 μm.
GVS Magna™ 47 mm Nylon Disc
A supported, naturally hydrophilic membrane designed to wet out evenly and retain its superior strength during use in general filtration or medical assays.
GVS Poretics™ 47 mm Polycarbonate Disc
Made from a thin, microporous polycarbonate film material. It is ideally suited for use in blood assays and high-purity and general filtration. Though polycarbonate is hydrophobic, the membrane is treated with a wetting agent to make it hydrophilic.
GVS Poretics™ 47 mm Black Polycarbonate Disc
Made from a thin, microporous polycarbonate film material. It is ideally suited for use in blood assays and high-purity and general filtration. Though polycarbonate is hydrophobic, the membrane is treated with a wetting agent to make it hydrophilic.
Supertek™ Carbon Paper Disc
43 mm carbon paper disc.
Cytiva (Formerly Pall Lab) Supor Membrane, 0.2 m, , Gridded, White, Gamma Irradiated, Bulk w/ Parchment Separators (200/pkg)
High Flow Rate Membrane Optimized for Biological, Pharmaceutical, and Sterilizing Filtration Requirements-Fast filtration with superior flow rates and high throughputs -Low protein binding and extensive drug compatibility for critical applications-Saves time and money with fewer filter changes per sample volume-142 and 293 mm discs feature printed tab for instant recognition of pore size and lot number This product is not approved for use in medical, clinical, surgical or other patient applications.
Cytiva (Formerly Pall Lab) Supor Membrane, 0.8 m, 47 mm, White, Gridded, Gamma Irradiated, Bulk w/ Parchment Separators (200/pkg)
High Flow Rate Membrane Optimized for Biological, Pharmaceutical, and Sterilizing Filtration Requirements-Fast filtration with superior flow rates and high throughputs -Low protein binding and extensive drug compatibility for critical applications-Saves time and money with fewer filter changes per sample volume-142 and 293 mm discs feature printed tab for instant recognition of pore size and lot number This product is not approved for use in medical, clinical, surgical or other patient applications.
Cytiva Supor 450 Membrane Disc Filters, 0.45 µm - 25 mm, plain (100/pkg)
High Flow Rate Membrane Optimized for Biological, Pharmaceutical, and Sterilizing Filtration Requirements-Fast filtration with superior flow rates and high throughputs -Low protein binding and extensive drug compatibility for critical applications-Saves time and money with fewer filter changes per sample volume-142 and 293 mm discs feature printed tab for instant recognition of pore size and lot number This product is not approved for use in medical, clinical, surgical or other patient applications.
Cytiva Supor 200 Membrane Disc Filters, 0.2 µm - 25 mm, plain (100/pkg)
High Flow Rate Membrane Optimized for Biological, Pharmaceutical, and Sterilizing Filtration Requirements-Fast filtration with superior flow rates and high throughputs -Low protein binding and extensive drug compatibility for critical applications-Saves time and money with fewer filter changes per sample volume-142 and 293 mm discs feature printed tab for instant recognition of pore size and lot number This product is not approved for use in medical, clinical, surgical or other patient applications.
Cytiva (Formerly Pall Lab) Supor 450 Membrane Disc Filters, 0.45 m - 293 mm, tabbed (25/pkg)
High Flow Rate Membrane Optimized for Biological, Pharmaceutical, and Sterilizing Filtration Requirements-Fast filtration with superior flow rates and high throughputs -Low protein binding and extensive drug compatibility for critical applications-Saves time and money with fewer filter changes per sample volume-142 and 293 mm discs feature printed tab for instant recognition of pore size and lot number This product is not approved for use in medical, clinical, surgical or other patient applications.
Cytiva (Formerly Pall Lab) GLA-5000 PVC Membrane Disc Filters - 5 m, 47 mm (100/pkg)
Inherently Low Ash Membrane Ideally Suited for Multiple NIOSH Analytical Methods-Assures gravimetric stability with low moisture pick-up and low tare weight.-Low ash. Provides interference-free silica determinations.-5 m pore size meets NIOSH and OSHA requirements.-25 and 37 mm sizes are ideal for use in Pall Air Monitoring Cassettes. This product is not approved for use in medical, clinical, surgical or other patient applications.
Cytiva Metricel Black Membrane, 0.45 µm, 47 mm, Black, Gridded, Gamma Irradiated, Bulk w/ Parchment Separators (200/pkg)
Contrasting Membrane for Microbiological Analysis-Dark background provides excellent contrast for counting opaque colonies in microbiology labs-Exclusive dot grid pattern does not enhance or inhibit colony growth-Certified for use in the Membrane Filter (MF) Technique as described in Standard Methods for the Examination of Water and Wastewater, current edition-Sharp contrast between black membrane and white grid line provides guidance while viewing and counting-Available non-sterile or in individual gamma-irradiated packs (S-packs) for critical applications This product is not approved for use in medical, clinical, surgical or other patient applications.
Cytiva (Formerly Pall Lab) Supor 100 Membrane Disc Filters, 0.1 m - 90 mm, plain (100/pkg)
High Flow Rate Membrane Optimized for Biological, Pharmaceutical, and Sterilizing Filtration Requirements-Fast filtration with superior flow rates and high throughputs -Low protein binding and extensive drug compatibility for critical applications-Saves time and money with fewer filter changes per sample volume-142 and 293 mm discs feature printed tab for instant recognition of pore size and lot number This product is not approved for use in medical, clinical, surgical or other patient applications.