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
Cytiva wwPTFE Membrane Disc Filter - 0.45 µm, 50 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 (Formerly Pall Lab) Supor 800 Membrane Disc Filters, 0.8 m - 293 mm, no tab (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.
Sterlitech Corporation Nylon Membrane Filters, 0.45 Micron, 47mm, 100/Pk
Nylon membrane disc filters: 0.45 µm pore-size, 47 mm diameter, pack of 100. Hydrophilic, low-extractable, inert, durable material supported by an internal polyester web. Typically used for HPLC, microbiology, medical/clinical, and general filtration.
Sterlitech Corporation Polyethersulfone (PES) Membrane Filters, 0.2 Micron, 47mm, 100/Pk
Sterlitech PES (polyethersulfone) membrane filters, 0.2 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.
US Plastic Corporation 8.3 oz. Wide Mouth Round HDPE Jars with 53/400 Cap, 364/case
These wide mouth round jars are great for samples and can be used for liquids, pastes, and powders.
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.
Tisch Scientific Nylon Membrane Filter, 0.45 µm, 47 mm, Nonsterile, 200 Pack, SF13880
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.
Sterlitech Corporation Nylon Membrane Filters, 0.8 Micron, 47mm, 100/Pk
Nylon membrane disc filters: 0.8 µm pore-size, 47 mm diameter, pack of 100. Hydrophilic, low-extractable, inert, durable material supported by an internal polyester web. Typically used for HPLC, microbiology, medical/clinical, and general filtration.
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.
Azzota Corp Microporous Filter, NYLON, Diameter: 47mm, Pore Size: 0.22um, 100/pk
Microporous Filter, NYLON, Diameter: 47mm, Pore Size: 0.22um, 100/pk.