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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Sartorius Cellulose Acetate Membrane Filters
Combines high flow rates and thermal stability with very low adsorption characteristics. Sartorius Cellulose Acetate Membrane Filters are excellently suited for use in pressure filtration devices. Non-sterile filters in a variety of diameters and pore sizes are bulk-packed to save money and space.
Thickness (Metric) | 120 μm |
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Color | White |
Material | Cellulose Acetate |
Hydrophobicity | Hydrophilic |
For Use With (Application) | For use in pressure filtration devices; Sterile filtration of solution. |
Autoclavable | Autoclavable |
Sterility | Non-sterile |
Fisherbrand™ Cellulose Membranes
Suitable for Clarification and sterilizing filtration of biological fluids . Fisherbrand™ Cellulose Membranes filters are composed of pure cellulose acetate modified to offer researchers the lowest binding filters available.
Wettability | Yes |
---|---|
Type | Plain Disc |
Color | White |
Quantity | 100 Pack |
Material | Cellulose Acetate |
Filter Type | Microfilter |
Hydrophobicity | Hydrophilic |
For Use With (Application) | Sterilizing filtration of aqueous solutions (Nutrient media, Buffers and sera), sterilizing filtration of Proteins and enzyme, receptor binding studies |
Sterility | Non-sterile |
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 |
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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) |
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/Pk. |
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 |
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 |
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 |
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 |
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.
Material | Nylon |
---|---|
Hydrophobicity | Hydrophilic |
Autoclavable | Autoclavable |
Thickness (Metric) | 1 mm |
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Material | PTFE |
No. per Pack | 10 Pk. |
Merck MF-Millipore™ Membrane Filter, 0.65 μm
MF-Millipore™ Membrane Filter composed of mixed cellulose esters (MCE) membrane, hydrophilic.
Pore Size | 0.65 μm |
---|---|
Disposable | Reusable |
Flow Rate | 140 mL/min. x cm2 |
Wettability | Hydrophilic |
Type | Filter Membranes |
Format | Disc |
Color | White |
Material | MCE |
Filter Type | Membrane Filter |
Hydrophobicity | Hydrophilic |
Autoclavable | Not Autoclavable |
Sterility | Non-sterile |
Sartorius Polyethersulfone Membrane Filters
Polyethersulfone (PES) filters have a high internal porosity.
Thickness (Metric) | 150 μm |
---|---|
Quantity | 100/Pk. |
Material | PES |
For Use With (Application) | Recommended for filtering biological and pharmaceutical solutions. |
Cytiva Whatman™ Cyclopore PC Polycarbonate Membrane Filters
Microporous membranes featuring sharp cut-off and reproducible lab microfiltration characteristics of track-etched membrane filters
Type | Membrane filters |
---|---|
Temperature (English) Operating | 284 °F |
Pore Density | Min: 105 pores/cm2, Max: 6 x 108 pores/cm2 |
Quantity | 100 Pk. |
Material | Polycarbonate |
Porosity | Min: 4%, Max: 20% |
Temperature (Metric) Operating | 140 °C |
For Use With (Application) | For general filtration, Cross-flow filtration, Air and water monitoring, Microorganism analysis, Healthcare applications, Immunodiagnostics |
Autoclavable | Autoclavable |