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
Fisherbrand™ Mixed Cellulose Ester Membranes Sterile Filter
Fisherbrand™ Mixed Celluloses Esters Membranes Sterile Filters are composed of cellulose acetate and cellulose nitrate.
Wettability | Yes |
---|---|
Type | Gridded Disc |
Diameter (Metric) | 47 mm |
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 | Sterile |
Material (Membrane) | Cellulose Nitrate |
---|---|
No. per Case | 200 |
Grid Color | Blue |
Individually wrapped | Yes |
No. per Pack | 1 |
Diameter (Metric) Membrane | 47 mm |
Autoclavable | Not Autoclavable |
Sterility | Sterile |
Sartorius Hydrophobic edged Sterile Cellulose Nitrate and Acetate Membrane Filters
Membrane Filters for Colony Counting and Sterility Testing - Cellulose nitrate (cellulose ester), Cellulose acetate and regenerated Cellulose, hydrophobic edged, individually, sterile packaged
Color | White |
---|---|
Grid Color | Black |
Quantity | 100/Pk. |
Hydrophobicity | Hydrophobic |
Sterility | Sterile |
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 |
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.
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 |
Cytiva Whatman™ Mixed Cellulose Ester Membrane Filters
Whatman™ Mixed Cellulose Ester Membrane Filters are biologically inert and offers high degree of internal surface area for greater product adsorption.
Material | MCE |
---|---|
Autoclavable | Autoclavable |
Sterility | Sterile |
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 |
Sartorius Microsart™ e.motion Membrane Filters
Membrane Filters suitable for use in the Microsart e.motion dispenser
Material | Cellulose Nitrate |
---|---|
Sterility | Sterile |
Sartorius Stedim Biotech™ Microsart™ Cellulose Nitrate Membrane Filter Units, Gridded, White/Black, 0.45μm
SureTRACE
Supports traceability with guaranteed access to certificates and proactive change notifications.
Learn More
Supports traceability with guaranteed access to certificates and proactive change notifications.
Learn More
Sartorius Stedim Biotech™ Microsart™ Cellulose Nitrate Membrane Filter Units, Gridded, White/Black 0.45μm combine a funnel, a filter base and a gridded membrane filter in one unit.
Pore Size | 0.45 μm |
---|---|
Diameter (Metric) | 47 mm |
Material (Membrane) | Cellulose Nitrate |
Color | White/Black Grid |
Material | Polypropylene Funnel, ABS Base |
Sterility | Sterile |
Sartorius™ 11406 Series Gridded Sterile Cellulose Nitrate (CN) Membrane Filters
11406 Series Gridded Sterile Cellulose Nitrate (CN) Membrane Filters have a very uniform pore structure and high non-specific adsorption. Single-packed or dispenser-ready, these individually wrapped filters are ideal for colony counting, particle testing, microscopy, and sterility testing.
Pore Size | 0.45 μm |
---|---|
Disposable | Single-use |
Type | Membrane Filter |
Format | Disc |
Material (Membrane) | Cellulose Nitrate |
Color | White |
Grid Color | Black |
Material | Cellulose Nitrate |
Filter Type | Membrane Filter |
For Use With (Application) | Bioburden/Microbial Enumeration, Food and Beverage, Environmental/Water Testing |
Sterility | Sterile |
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 Gridded Sterile Cellulose Nitrate Membrane Filters
Membrane Filters for Colony Counting, Particle Testing and Microscopy - Cellulose nitrate (cellulose ester), gridded, individually, sterile packaged
Color | White |
---|---|
Material | Cellulose Nitrate |
Hydrophobicity | Hydrophilic |
Sterility | Sterile |
Sartorius Microsart™ e.motion Membrane Filters
For colony counting, particle testing and microscopy. Specifically designed for use in the Microsart™ e.motion dispenser, the filters are individually sterile-sealed in a format packaged on a pleated band, without protective paper. Can also be used with Sartorius nutrient pad sets.
Cytiva Whatman™ Regenerated Cellulose Membranes: Grade RC 58
Consists of pure cellulose without any wetting agents
Thickness (Metric) | 75 μm |
---|---|
Pore Size | 0.2 μm |
Material | Regenerated Cellulose |
Hydrophobicity | Hydrophilic |