Filtration Membrane Discs
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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
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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 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 |
Cytiva Whatman™ Nylon Membranes
Flexible and durable for easier handling. Cytiva Nylon Membranes are naturally hydrophilic, eliminating need for wetting agents and prewetting when filtering aqueous solutions.
![EDGE](/content/dam/fishersci/glyphs/edge.png)
Material | Nylon |
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Hydrophobicity | Hydrophilic |
Autoclavable | Autoclavable |
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.
![EDGE](/content/dam/fishersci/glyphs/edge.png)
Color | White |
---|---|
Material | Cellulose Nitrate |
Autoclavable | Autoclavable |
Merck MF-Millipore™ Membrane Filter, 1.2 μm, Gridded
Mixed cellulose esters (MCE) membrane, hydrophilic
Fisherbrand™ Nylon Membrane Filter
Naturally hydrophilic membrane designed to wet out evenly and retain its superior strength during use in general filtration or medical assays.
![EDGE](/content/dam/fishersci/glyphs/edge.png)
Wettability | Yes |
---|---|
Type | Plain Disc |
Color | White |
Quantity | 100 Pack |
Material | Nylon |
Filter Type | Microfilter |
Hydrophobicity | Hydrophilic |
For Use With (Application) | Sterilizing filtration of aqueous solutions, organic solvents, Bacterial and particles removal (blood Glucose, Serum Cholesterol, drugs) |
Autoclavable | Autoclavable |
Sterility | Non-sterile |
Fisherbrand™ Mixed Celluloses Esters Membranes Non-sterile Filter
Fisherbrand™ Mixed Celluloses Esters Membranes Non-sterile Filters are composed of cellulose acetate and cellulose nitrate.
![EDGE](/content/dam/fishersci/glyphs/edge.png)
Wettability | Yes |
---|---|
Type | Plain Disc |
Color | White |
Quantity | 100 Pack |
Material | MCE |
Hydrophobicity | Hydrophilic |
For Use With (Application) | Microdialysis of DNA and Proteins, clarification of aqueous solutions during microbiological analysis, identification of Nucleic Acids |
Sterility | Non-sterile |
Sartorius Gridded Sterile Cellulose Nitrate Membrane Filters: 0.45μm
Ensure quality control in microbiological filtering. Sartorius Gridded Sterile Cellulose Nitrate Membrane Filters, 0.45μm are single-packed membranes with colored grids for colony counting, particle testing and microscopy. The 0.45μm pore size is made in accordance with ISO 7704. Choose from two diameters and quantities in a range of filter/grid color combinations.
![EDGE](/content/dam/fishersci/glyphs/edge.png)
Pore Size | 0.45 μm |
---|---|
Individually wrapped | Yes |
Material | Cellulose Nitrate |
Hydrophobicity | Hydrophilic |
For Use With (Application) | For colony count; sterility testing; particle count; microscopy |
Sterility | Sterile |
Merck MF-Millipore™ Membrane Filter, 1.2 μm, Gridded
Mixed cellulose esters (MCE) membrane, hydrophilic
Thermo Scientific™ Microsart™ Filter System
Carry out particulate and microbial analysis of water samples and test culture media according to ISO 11133:2014 with Microsart™ Filter System.
Type | Filter System |
---|---|
Sterility | Sterile |
Pore Size | 0.2 μm |
---|---|
Bubble Point | 40 psi |
Flow Rate | 15 (at 690 Mbar (10 psi)) |
Wettability | Hydrophilic |
Type | Filter Membranes |
No. per Case | 100Pack |
Quantity | 100/Pk. |
Material | Nylon |
Filter Type | Screen Filter |
Hydrophobicity | Hydrophilic |
For Use With (Application) | Clarifying aqueous or organic solutions prior to HPLC analysis. |
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) |
Sartorius Nongridded Sterile Cellulose Membrane Filters
Ensure quality control in routine microbiological filtering. Sartorius Nongridded Sterile Cellulose Membrane Filters are single-packed membranes used for colony counting, particle testing, microscopy and sterility testing. Choose between cellulose acetate or cellulose nitrate membranes in a variety of pore sizes.
Color | White |
---|---|
Individually wrapped | Yes |
Filter Type | Membrane Filter |
No. per Pack | 100/Pk. |
Hydrophobicity | Hydrophilic |
For Use With (Application) | For colony count; sterility testing; particle count; microscopy |
Sterility | Sterile |
Sartorius Environmental Air Monitoring Gelatin Membranes
Collect airborne microbes and viruses. Sartorius Environmental Air Monitoring Gelatin Membranes guarantee reliable and accurate results. They are sterile and water soluble with a high retention rate. Choose from a range of sizes in single-wrapped disposable filters with holders or packs of filter disks.
Thickness (Metric) | 250 μm |
---|---|
Pore Size | 3.0 μm |
Wettability | Water soluble |
Material | Gelatin |
Sterility | 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 |