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 PTFESep™ 25 mm Polytetrafluoroethylene Disc
Polytetrafluoroethylene polymer (PTFE) laminated to a polypropylene support for improved durability and easy handling. These filters are chemically compatible with strong acids and most aggressive solvents such as alcohols.
GVS MicronSep™ 25 mm White Nitrocellulose Disc
Mixed cellulose esters (MCE) filtration membrane is an unsupported, hydrophilic membrane. Its rapid flow rate and high throughput make it ideal for use in diagnostic kit manufacturing applications.
Supertek™ Carbon Paper Disc
43 mm carbon paper disc.
Cytiva Nylaflo™ Nylon Membrane Disc Filter - 0.45 µm, 47 mm (100/pkg)
A Highly Versatile Laboratory Membrane Filter-Excellent chemical compatibility with esters, bases, and alcohols-Naturally hydrophilic-Available in 0.2 and 0.45 µm pore sizes, in diameters ranging from 13 to 142 mm-HPLC certified. Provides assurance that the filter will not add artifacts to your analysis This product is not approved for use in medical, clinical, surgical or other patient applications.
Cytiva Supor 800 Membrane Disc Filters, 0.8 µm - 47 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 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 (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) Nylaflo™ Nylon Membrane Disc Filter - 0.45 m, 90 mm (100/pkg)
A Highly Versatile Laboratory Membrane Filter-Excellent chemical compatibility with esters, bases, and alcohols-Naturally hydrophilic-Available in 0.2 and 0.45 m pore sizes, in diameters ranging from 13 to 142 mm-HPLC certified. Provides assurance that the filter will not add artifacts to your analysis This product is not approved for use in medical, clinical, surgical or other patient applications.
Cytiva (Formerly Pall Lab) wwPTFE Membrane Disc Filter - 0.45 m, 47 mm (50/pkg)
Membrane with Chemical Compatibility for Aqueous Solutions and Aggressive Solvents-Maximum versatility. Filters aqueous solutions or aggressive chemicals. -Low protein binding membrane gives high recovery of critical proteinaceous samples.-HPLC certified. Provides assurance that the filter will not add artifacts to your analysis.-Low API adsorption. 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) Pallflex Emfab™ Air Monitoring Filters - TX40HI20WW, 70 mm (100/pkg)
Versatile Filters Uniquely Suited for a Broad Range of Air Monitoring ApplicationsUseful for high temperature and hot gas air monitoring applications.Ideal for stack sampling and diesel emissions testing. This product is not approved for use in medical, clinical, surgical or other patient applications.
Cytiva Supor 450 Membrane Disc Filters, 0.45 µm - 47 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 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.
Cytiva (Formerly Pall Lab) wwPTFE Membrane Disc Filter - 0.2 m, 25 mm (50/pkg)
Membrane with Chemical Compatibility for Aqueous Solutions and Aggressive Solvents-Maximum versatility. Filters aqueous solutions or aggressive chemicals. -Low protein binding membrane gives high recovery of critical proteinaceous samples.-HPLC certified. Provides assurance that the filter will not add artifacts to your analysis.-Low API adsorption. This product is not approved for use in medical, clinical, surgical or other patient applications.