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
Azzota Corp MPF CN-CA 47mm 0.22u S 100pk
Microporous Filter CN-CA Diameter 47mm Pore Size 0 22um Sterile 100/pk
Azzota Corp MPF CN-CA 47mm 0.45u S 100pk
Microporous Filter CN-CA Diameter 47mm Pore Size 0 45um Sterile 100/pk
Azzota Corp MPF CN-CA 47mm 0.22u 100pk St
Microporous Filter CN-CA Diameter 47mm Pore Size 0 22um Sterile 100/pk
Sigma Aldrich Fine Chemicals Biosciences PVC Membrane filter 5.0
Polyvinylidene chloride (PVC) membranes are specified by ASTM NIOSH and OSHA in air monitoring applications to analyze silica carbon black metals quartz particulates and others..filters composed of pure medical-grade PVC .Use for air monitoring applications to analyze silica carbon black or quartz particulates .Available in 5.0 181m filters features Benefits.High-quality medical-grade PVC polymer .PVC is non-hygroscopic so humidity will not impact your gravimetric analysis ApplicationsAir Monitoring of Particulate Contaminants Including Silica Metals and Quartz
Foxx Life Sciences EZLabpure™ Polypropylene PP Hydrophilic Membrane Filters, 0.45µm Pore Size, 47mm Diameter Membrane Filter Discs, Non Sterile, 50/PK
EZLabpure™ Polypropylene PP Hydrophilic Membrane Filters are designed for efficient particle retention, sample clarification, and routine laboratory filtration applications. Featuring high-quality PP hydrophilic membranes, these membrane filter discs provide strong chemical compatibility and reliable flow performance for aqueous solutions. Available in 0.22 um and 0.45 um pore sizes, and offered in 13 mm, 25 mm, 47 mm, and 90 mm diameters. All membrane filter discs are supplied non-sterile and comply with USP Class VI Standards for safe use in research and analytical environments.
These Filtration Disc Membranes are a preferred choice for HPLC applications. This plastic polymer has good resistance to a broad range of chemicals even at high temperatures, making it adaptable for applications ranging from air filtration. They are suitable for aqueous and organic solvent filtration, depth filtration, sterilizing gases, and trapping aqueous aerosols, and air and gas venting.
Foxx Life Sciences EZLabpure™ PTFE Hydrophilic Membrane Filters, 0.22µm Pore Size, 142mm Diameter Membrane Filter Discs, Non Sterile, 25/PK
EZLabpure™ PTFE Hydrophilic Membrane Filters engineered for superior chemical resistance and dependable filtration performance in demanding laboratory environments. Available in both hydrophobic and hydrophilic configurations, these high-quality PTFE membrane filter discs are ideal for air, gas, solvent, and aqueous applications, delivering consistent flow rates and reliable particle retention. Hydrophobic variants are offered in 0.22 um, 0.45 um, and 1.2 um pore sizes, while hydrophilic options are available in 0.22 um and 0.45 um, with diameter choices including 13 mm, 25 mm, 47 mm, 90 mm, and 142 mm. All filters are supplied non-sterile and comply with USP Class VI Standards for safe use in research and analytical environments.
These Filtration Membrane Disc Filters have a durable wide operating temperature range and resistance to the destructive effects of many chemicals. These filters can be used to filter aqueous fluids without prior wetting.
Hach Company Replacement: COUPLER, PTFE, 47MM
Replacement Coupler for Xenosep SPE Systems Apparatus. PTFE. 47 mm.