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 Microporous Filter, Pvdf, Diameter: 13mm, Pore Size: .22um, 200/Pk
Microporous Filter, PVDF, Diameter: 13mm, Pore Size: .22um, 200/pk
MDI Membrane FLTR MDI CN 47MM 0.2 EO 100PK
mdi Cellulose Nitrate membrane filters, 47 mm, 0.2 µm, EO-sterile, 100 PK
Ace Glass, Inc. Replacement glass filter disc for Ace 5801-57 1/4-28 to #15end fitting adapter.
Replacement glass filter disc for Ace 5801-57 1/4-28 to #15end fitting adapter.
Sterlitech Corporation Polyester (PETE) Membrane Filters, 0.4 Micron, 47mm, 100/Pk
Sterlitech polyester track etch (PETE) membrane filters, 0.4 micron pore size, 47 mm diameter, pack of 100. Hydrophilic, solvent resisant film for blood assays, microscopy, and highly caustic samples.
Sterlitech Corporation Nylon Membrane Filters, 5.0 Micron, 90mm, 25/Pk
Nylon Membrane Filters, 5.0 Micron, 90mm, 25/Pk
Sterlitech Corporation Polyethersulfone (PES) Membrane Filters, 0.2 Micron, 25mm, 100/Pk
POLYETHERSULFONE (PES) MEMBRANE FILTERS, 0.2 MICRON, 25MM, 100/PK
Ace Glass, Inc. 2.874" 350 micron polypropylene filter for #80 threaded adapters. Pkg/12.
2.874" 350 micron polypropylene filter for #80 threaded adapters. Pkg/12.
Foxx Life Sciences EZLabpure™ Mixed CE(Cellulose Ester) Hydrophilic Membrane Filters, 0.45µm Pore Size, 47mm Diameter Membrane Filter Discs, Non Sterile, 50/PK
EZLabpure™ Mixed Cellulose Ester (MCE) Hydrophilic Membrane Filters are biologically inert and one of the most widely used membranes in research applications. With a smoother, more uniform surface than pure nitrocellulose filters, these membrane filter discs deliver superior flow rates and can withstand autoclaving up to 130°C without adversely affecting bubble point, flow rate, or microbiological recovery. Widely used for sterilizing biological fluids, microbiological testing, and analytical applications, these non-sterile membrane filter disc are available in 0.22 um, 0.45 um, and 0.8 um pore sizes across 13 mm, 25 mm, 47 mm, and 90 mm diameters with packaging options of 25/PK, 50/PK, and 100/PK. These Filtration Disc Membranes are biologically inert and one of the most widely used membranes in research applications
Ace Glass, Inc. 1.950" 210 micron polypropylene filter for #50 threaded adapters. Pkg/12.
1.950" 210 micron polypropylene filter for #50 threaded adapters. Pkg/12.