Filtration Membrane Discs
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
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Filtered Search Results
Sartorius PTFE (Polytetrafluorethylene) Membrane Filters
Filter air and gasses, even at low differential pressures. Sartorius PTFE (Polytetrafluorethylene) Membrane Filters are permanently hydrophobic with low adsorption and excellent chemical compatibility. Choose from four pore sizes in a variety of diameters.
Color | White |
---|---|
Material | PTFE |
Hydrophobicity | Hydrophobic |
For Use With (Application) | Air/gas-filtration |
Autoclavable | Autoclavable |
Fisherbrand™ Polyethersulfone Membranes
Fisherbrand™ Polyethersulfone Membranes features highly asymmetrical pore structure that offers effective loading capacity and high flow rate.
Wettability | Yes |
---|---|
Type | Plain Disc |
Color | White |
Quantity | 100 Pack |
Material | PES |
Hydrophobicity | Hydrophilic |
For Use With (Application) | Filtration of special chemical reagent, high temperature liquids, filtration of special chemical reagent, high temperature liquids, filtration of drugs |
Sterility | Non-sterile |
Fisherbrand™ PTFE Filter Membranes
Fisherbrand™ PTFE membrane is hydrophobic filter made of polytetra-fluorethylene laminated with PP layer.
Thickness (Metric) | 0.16 mm |
---|---|
Wettability | Yes |
Type | Plain Disc |
Color | White |
Quantity | 100 Pack |
Material | PTFE |
Hydrophobicity | Hydrophobic |
For Use With (Application) | Sterilizing filtration of gas samples, clarification and filtration of pure solvents, aerosol samplings, filtration of strong Acids and chemical aggressive solutions, venting applications (hospital air conditioning, tank fermentation in microelectronic) |
Thermo Scientific™ Nalgene™ Membrane and Prefilter Disks
Carry out particulate and microbial analysis with these filter membranes. Available in various forms for water quality work, cold sterilization or sample clean up.
Sartorius Stedim Biotech™ Hydrophobic PTFE Membrane Filter, Type 11842
Sartorius Stedim Biotech™ Hydrophobic PTFE Membrane Filter, Type 11842 are permanently hdyrophobic and not wetted by air humidity.
Cytiva Whatman™ Type WCN Cellulose Nitrate Membranes
Recommended for majority of routine applications, this membrane is manufactured under strictly controlled conditions. Whatman™ Type WCN Cellulose Nitrate Membranes narrow pore size distribution for improved surface capture and analysis.
Color | White |
---|---|
Material | Cellulose Nitrate |
Autoclavable | Autoclavable |
Merck Durapore™ Membrane Filters, 0.22 μm
Recommended when maximum recovery is important. Durapore™ PVDF Membranes: 0.22μ Pore Size provide high flow rates and throughput, low extractables, broad chemical compatibility and low protein binding. Available in diameters ranging from 13mm to 142mm.
Pore Size | 0.22 μm |
---|---|
Type | Filter Membranes |
Color | White |
Material | PVDF |
Autoclavable | Not Autoclavable |
Sterility | Non-sterile |
Sartorius Cellulose Nitrate Membrane Filters
Combines uniform pore structure with high flow and adsorption rates. Sartorius Cellulose Nitrate Membrane Filters are excellently suited for diagnostic kits. Non-sterile, hydrophilic filters in a variety of diameters and pore sizes are bulk-packed to save money and space.
Thickness (Metric) | 130 μm |
---|---|
Color | White |
Material | Cellulose Nitrate |
Hydrophobicity | Hydrophilic |
Autoclavable | Autoclavable (wet) |
Pore Size | 8 μm |
---|---|
Flow Rate | 620 mL/min x cm2 |
Wettability | Hydrophilic |
Type | Filter Membranes |
Color | White |
Material | MCE |
Hydrophobicity | Hydrophilic |
For Use With (Application) | For use in air monitoring; Fluid monitoring; Particle collection and analysis; QC of fluid holding tanks. |
Autoclavable | Not Autoclavable |
Sterility | Non-sterile |
Pore Size | 10 μm |
---|---|
Flow Rate | 70 mL/min x cm2 |
Wettability | Hydrophilic |
Type | Filter Membranes |
Color | White |
Material | Nylon |
Filter Type | Net Filter |
Hydrophobicity | Hydrophilic |
Autoclavable | Not Autoclavable |
Sterility | Non-sterile |
Merck Omnipore™ Membrane Filters, 5 μm
Hydrophilic PTFE polymer membrane filter compatible with virtually all solvents, acids, and alkaline solutions. Omnipore™ Membrane Filters are biologically and chemically inert.
Merck Fluoropore™ Membrane Filters, 5 μm
Hydrophobic membrane with laminated backing for easier handling
Merck Omnipore™ Membrane Filters, 5 μm
Hydrophilic PTFE polymer membrane filter compatible with virtually all solvents, acids, and alkaline solutions. Omnipore™ Membrane Filters are biologically and chemically inert.
Cytiva™ Whatman™ NC45 Nitrocellulose Filtration Membranes
Whatman™ NC45 Nitrocellulose Membrane Filters are known for higher strength and flexibility, low extractables, and narrow pore size distribution. They are recommended for routine applications and are manufactured under strictly controlled conditions.