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, 0.2 μm
GVS Polycarbonate Track Etched (PCTE) Membranes are hydrophilic or hydrophobic and available in pore sizes from 0.01 to 20 μm.
GVS Supported Cellulose Acetate Membranes
Pure cellulose acetate impregnated on nonwoven support
GVS Mixed Cellulose Esters (MCE) Membrane, Gridded, Sterile
GVS Mixed Cellulose Esters (MCE) Membranes are hydrophilic and available in pore Sizes from 0.1 to 8 μm.
GVS Mixed Cellulose Esters (MCE) Membrane
GVS Mixed Cellulose Esters (MCE) Membranes are hydrophilic and available in pore Sizes from 0.1 to 8 μm.
GVS Polycarbonate Track Etched (PCTE) Membrane, Hydrophilic, Disc, 0.6 μm
GVS Polycarbonate Track Etched (PCTE) Membranes are hydrophilic or hydrophobic and available in pore sizes from 0.01 to 20 μm.
GVS AcetatePlus™ 25 mm Cellulose Acetate Disc
Cellulose acetate is a supported, hydrophilic membrane that is naturally low binding. Available from 25 mm to 293 mm. It is ideal for filtration applications where maximal recovery of protein is critical.
GVS Polyester Track Etched (PETE) Membrane
GVS Polyester Track Etched (PETE) Membranes available in pore sizes from 0.2 to 10 μm.
GVS Non-Woven Fabric Filter
GVS Non-woven fabric filter provides high breathability with fine particle filtration.
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 (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 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 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) Versapor Acrylic Copolymer 1200 Membrane Disc Filter, 1.2 m - 25 mm (100/pkg)
Ideal for prefiltration of difficult-to-filter solutions and serum.-For prefiltration-Excellent retention-Acrylic copolymerDesigned to be used in applications requiring excellent retention properties combined with tensile strengths in excess of 200 bar (3000 psi).Filter membrane is made of acrylic copolymer on a nonwoven support. Strong, flexible, and nonshedding, both dry and wet. Delivers high flow rates at low differential pressures. Can be used as a prefilter to replace glass fiber filters. UV or gamma sterilizable. This product is not approved for use in medical, clinical, surgical or other patient applications.