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
Ace Glass, Inc. 0.625" 210 micron polypropylene filter for #25 threaded adapters. Pkg/12.
0.625" 210 micron polypropylene filter for #25 threaded adapters. Pkg/12.
Ace Glass, Inc. 1.010" 350 micron polypropylene filter for #25 threaded adapters. Pkg/12.
1.010" 350 micron polypropylene filter for #25 threaded adapters. Pkg/12.
Sterlitech Corporation Polycarbonate (PCTE) Membrane Filters, 0.2 Micron, 13mm, 100/Pk
Polycarbonate (PCTE) Membrane Filters, 0.2 Micron, 13mm, 100/Pk
Azzota Corp Hollow Cathode Lamp (Hcl) Nickel, 1.5 In. (37mm) Fits: Varian, Analytic Jena, Gbc, Hitachi , Shimadzu , Tja, Thermo Unicam, Thermo Elemental, Buck, Phillips, Leeman Labs, Chemito
Hollow Cathode Lamp (HCL) Nickel, 1.5 in. (37mm) diameter fit in a wide range of instruments:- Varian, Analytic Jena, GBC, Hitachi , Shimadzu , TJA, Thermo Unicam, Thermo Elemental, Buck, Phillips, Leeman Labs, Chemito and many others
Sigma Aldrich Fine Chemicals Biosciences Nylon filter membranes por
Nylon filters are naturally hydrophilic and no wetting agents are used in manufacture.With an extractable level 0.0015Amg/cm2 they are ideal for HPLC solvent and sample preparation. Because of high non-specific binding they are not recommended for protein SOLUTIONons.Compatible with aqueous and most organic solventsAutoclavable unaffected by temperatures up to 180C
Foxx Life Sciences EZLabpure™ PVDF Hydrophilic Membrane Filters, 0.22µm Pore Size, 90mm Diameter Filtration Membrane Discs, Non Sterile, 25/PK
EZLabpure™ PVDF Hydrophilic Membrane Filters designed for high-performance sample clarification and sterile filtration of aqueous and protein-sensitive solutions. Manufactured with premium polyvinylidene fluoride (PVDF) membranes, these membrane filter discs provide low protein binding, excellent chemical resistance, and consistent flow rates for laboratory applications. Available in 0.22 um and 0.45 um pore sizes, and offered in 13 mm, 25 mm, 47 mm, 90 mm, and 142 mm diameters, all variants are non-sterile for research and analytical use. All filters are non-sterile and comply with USP Class VI Standards.
These Filtration Membrane Disc Filters have excellent water wettability, providing high flow rate. PVDF membranes are naturally hydrophobic but are modified to a hydrophilic nature, making them useful for a wide range of applications, both aqueous and non-aggressive solvents-based. These membranes are typically low protein binding and are used for sterilizing filtration.
Sigma Aldrich Fine Chemicals Biosciences Nylon Membranes positively
Microporous nylon 66 membrane on a polyester support carrying positively charged (pH 3 - 10) Aquaternary ammonium groups.Surface Properties Pore size of A0.45mum
Sterlitech Corporation Polyester (PETE) Membrane Filters, Transparent, 3.0 Micron, 12 Micron Thickness, 6E5 pores/cm2, 13mm, 100/pack
Sterlitech solvent resistant, hydrophilic polyester track etch (PETE) membranes are made from a thin, translucent, microporous, polyester film and are ideal for use in blood assays, microscopic analysis, and the general filtration of samples.PETE Membrane Filter Applications:* Precise General Filtration and Prefiltration* Removal of red blood cells from plasma* Flow control of reagents through assay
Grainger Membrane Filter 47 mm 0.45 um PK1000
The Grainger 14A849 Glass Microfiber Filter, 1.6 μm, 5.5 cm Diameter, Pack of 100 is a pack of 100 glass microfiber filters with a pore size of 1.6 microns and a diameter of 5.5 cm. These high-quality binder-free borosilicate glass filters are designed for a variety of laboratory filtration applications including HPLC sample preparation, IC sample filtration, solvent filtration and air monitoring. Their low metal extractables make them ideal for trace metal analysis. The filters have >98% particle retention down to their rated pore size.
TARGETMOL CHEMICALS INC SR 11302 5MG
Also available in 1 mg 10 mg 25 mg 50 mg 100 mg 1 mL 10 mM (in DMSO) and bulk. Please contact Fisher for quotes. SR 11302 is an inhibitor of activator protein-1 (AP-1). purity: 98%
Foxx Life Sciences EZLabpure™ Mixed CE(Cellulose Ester) Hydrophilic Membrane Filters, 0.8µm 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