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
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.
