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
Sterlitech Corporation Polyethersulfone (PES) Membrane Filters, 1.2 Micron, 47mm, 100/Pk
Sterlitech PES (polyethersulfone) membrane filters, 1.2 micron pore size, 47 mm diameter, pack of 100. Hydrophilic, low protein/drug binding, minimal extractables, and broad chemical tolerance; ideal for pharmaceutical, medical, and life science applications.
Azzota Corp Microporous Filter, NYLON, Diameter: 47mm, Pore Size: 0.45um, 100/pk
Microporous Filter, NYLON, Diameter: 47mm, Pore Size: 0.45um, 100/pk.
Sterlitech Corporation Polycarbonate (PCTE) Membrane Filters, 0.2 Micron, 13mm, 100/Pk
Polycarbonate (PCTE) Membrane Filters, 0.2 Micron, 13mm, 100/Pk
Tisch Scientific Nylon Membrane Filter, 0.45 µm, 47 mm, Sterile, 200 Pack, SF18013
Tisch nylon membrane filters are naturally hydrophilic, have high non-specific binding properties, and an extractable level of <0.0015 mg/cm^2, they are ideal for HPLC solvent and sample preparation.
Biodesign Inc of Ny CellMicroSieves, 20 micron pore size, ten 47 mm circles (nonsterile)
CellMicroSieves (TM) filters manufactured by BioDesign Inc of New York allow the separation of multiple cell types using a filter that will not bind cells or proteins. Eleven pore sizes are available in sheets (3 sheets of 12 by 12 inches per package), rolls (2 feet by 3 feet), and 47mm circles (10 per package) that are extremely useful for specific cell type separation, stem cell isolation, hybridoma production, collection of cells from media, and many other uses where a strong non-binding specific sized pore filter is needed. Can be repeatedly steam sterilized retaining its pore size. A pure nylon thread product with no extractable materials that is specifially made for biologial research.
WELCH MATERIALS INC Membrane filter, MCE, Dia. 47mm, Pore: 0.45µm, Grid, Sterile, individually packed. 100pcs/pk, 10pk/cs.
Membrane filter, MCE, Dia. 47mm, Pore: 0.45µm, Grid, Sterile, individually packed. 100pcs/pk, 10pk/cs.
ELKO FILTERING CO NYLON MESH FILTER 250UM 1 YARD
Nylon Monofilament Precision Woven Mesh - 250 Micron Opening, Open Area 50%, 40 Inch wide, Sold by Yard - Available from 1 - 5000 Microns - Sefar 06-250/50
Sterlitech Corporation Polycarbonate (PCTE) Membrane Filters, 0.4 Micron, 47mm, 100/Pk
Polycarbonate Track Etch (PCTE) membranes are made from a thin, microporous polycarbonate film material. It is ideally suited for use in blood assays and high-purity and general filtration.
Sterlitech Corporation Polycarbonate (PCTE) Membrane Filters, 30.0 Micron, 47mm, 100/Pk
Polycarbonate (PCTE) membrane filters, 30.0 micron, 47mm 100/pack
Biodesign Inc of Ny CellMicroSieves Sampler Pack (1 each 20, 15, 10, 8, 5 micron pore sheets of 12 by 12 inches)
CellMicroSieves (TM) filters manufactured by BioDesign Inc of New York allow the separation of multiple cell types using a filter that will not bind cells or proteins. Eleven pore sizes are available in sheets (3 sheets of 12 by 12 inches per package), rolls (2 feet by 3 feet), and 47mm circles (10 per package) that are extremely useful for specific cell type separation, stem cell isolation, hybridoma production, collection of cells from media, and many other uses where a strong non-binding specific sized pore filter is needed. Can be repeatedly steam sterilized retaining its pore size. A pure nylon thread product with no extractable materials that is specifially made for biologial research.
Sterlitech Corporation Polycarbonate (PCTE) Membrane Filters, 0.1 Micron, 13mm, 100/Pk
Polycarbonate (PCTE) Membrane Filters, 0.1 Micron, 13mm, 100/Pk