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 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
Analytical Sales & Services MWCO Micro Spin Filters, 800µL Volume, Pes 10,000 with 2.0ml Receiver Tubes
MWCO Micro Spin Filters, 800µL Volume, PES 10,000, with 2.0mL Receiver Tubes (Non-Sterile)
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
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
Grainger Membrane Filter 47 mm 0.45 um PK200
The LabExact Membrane Filter is a 47mm diameter hydrophilic polyethersulfone membrane filter with 0.45μm pore size. It has low protein binding and is ideal for analytical sample preparation including HPLC. The polyethersulfone membrane is compatible with most solvents. These sterile filters have a high flow rate and loading capacity. They can be used for aqueous and organic solutions. The maximum operating temperature is 70°C at 35 psi. Each filter has a 47mm diameter. Boxes contain 100 filters individually sealed in peel-open pouches.
Sterlitech Corporation Polyester (PETE) Membrane Filters, 8.0 Micron, 47mm, 100/Pk
Sterlitech polyester track etch (PETE) membrane filters, 8 micron pore size, 47 mm diameter, pack of 100. Hydrophilic, solvent resisant film for blood assays, microscopy, and highly caustic samples.
Sterlitech Corporation Polyester (PETE) Drain Disc, 142mm, 25/Pk
Polyester Drain Discs increase flow rate and throughputs by preventing blockage or "pore blinding" of the capillary pores in screen membranes.
Sterlitech Corporation Polycarbonate (PCTE) Membrane Filters, 0.4 Micron, 25mm, 100/Pk
Polycarbonate Track Etch (PCTE) membranes are made from a thin, microporous polycarbonate film material. It is ideally suited for use in blood assays and high-purity and general filtration.
Sterlitech Corporation Aluminum Oxide Membrane Filters, 0.2 Micron, 47mm, 10/pk
Aluminum oxide membranes feature uniform, densely-packed honeycomb pore structures that contribute to precise retention and high porosity characteristics.Applications:* HPLC sample and mobile phase filtration* Filtration of aggressive organic solvents* Virus concentration and analysis* Analysis of micro plastic in water* Epifluorescence microscopy* Synthesis of nanostructures (e.g. nanotubes)Features:* Fast filtration, efficient separation and high purity* High number of tightly controlled pores in honeycomb shape* Free of organic extractables and leachables* Minimum adsorption* Transparent when wet
Sterlitech Corporation Polyester (PETE) Membrane Filters, Transparent, 0.4 micron, 12 Micron Thickness, 2E6 pores/cm2, 90mm, 30/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
Sterlitech Corporation Aluminum Oxide Membrane Filters, 0.02 Micron, 13mm, 50/pk
Aluminum oxide membranes feature uniform, densely-packed honeycomb pore structures that contribute to precise retention and high porosity characteristics.Applications:* HPLC sample and mobile phase filtration* Filtration of aggressive organic solvents* Virus concentration and analysis* Analysis of micro plastic in water* Epifluorescence microscopy* Synthesis of nanostructures (e.g. nanotubes)Features:* Fast filtration, efficient separation and high purity* High number of tightly controlled pores in honeycomb shape* Free of organic extractables and leachables* Minimum adsorption* Transparent when wet
Sterlitech Corporation Polyester (PETE) Membrane Filters, Transparent, 3.0 Micron, 12 Micron Thickness, 6E5 pores/cm2, 25mm, 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
Sterlitech Corporation Polycarbonate (PCTE) Membrane Filters, Black, 0.2 Micron, 25mm, 100/pk
These hydrophilic, polycarbonate track-etch (PCTE) membrane filters have been pigmented using black dye to minimize membrane autofluorescence. The dyed PCTE membrane filters are ideal for use with fluorescence microscopy analyses that involve direct observation and enumeration of animal cells or microorganisms that have been labeled with fluorescent markers. They are also suitable for optical microscopy studies of light colored particles and microorganisms by providing a dark background for enhanced contrast.