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™ 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) |
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 |
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 |
Cytiva Whatman™ WTP Range PTFE Membranes
Suited for applications involving aggressive organic solvents, strong acids, and alkalis due to being chemically stable and inert. Whatman™ WTP Range PTFE Membranes are particularly suitable for preparing samples for HPLC analysis, air and gas sterilization.
Quantity | 100 Pack |
---|---|
Material | PTFE |
Hydrophobicity | Hydrophobic |
Membrane Type | WTP |
Fisherbrand™ Mixed Celluloses Esters Membranes Non-sterile Filter
Fisherbrand™ Mixed Celluloses Esters Membranes Non-sterile Filters are composed of cellulose acetate and cellulose nitrate.
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 |
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.
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 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 |
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 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™ 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 MF-Millipore™ Membrane Filter, 0.8 μm, Gridded
Mixed cellulose esters (MCE) membrane, hydrophilic
Thickness (Metric) | 150 μm |
---|---|
Pore Size | 0.8 μm |
Flow Rate | 190 mL/min x cm2 |
Wettability | Hydrophilic |
Type | Filter Membranes |
No. per Case | 100Pack |
Autoclavable | Not Autoclavable |
Sterility | Non-sterile |
Merck MF-Millipore™ Mixed Cellulose Ester Membranes, Triton-free
Composed of mixed cellulose esters (nitrate and acetate)
Wettability | Hydrophilic |
---|---|
Color | White |
Material | Mixed Cellulose Esters (MCE) (Nitrate and Acetate); Triton-Free |
For Use With (Application) | Clarification of fluids; Sterilizing filtration of tissue culture media, additives, antibiotics; Air monitoring; Particulate analysis; Particulate removal; Biological assays (receptor binding studies, TCA precipitates, etc.). |
Autoclavable | Not Autoclavable |
Sterility | Non-sterile |
Membrane Type | Plain |
Cytiva Whatman™ PTFE Membrane Circles
Provides clarification of corrosives, solvents, and aggressive fluids. Whatman™ PTFE Membrane Circles are particularly useful in HPLC analysis when solid particles can cause permanent damage to the column.
Material | PTFE |
---|---|
Hydrophobicity | Hydrophobic |
Cytiva Whatman™ Anodisc™ Filter Membranes
Constructed with precision pore structure and narrow pore size distribution. Whatman™ Anodisc™ Filter Membranes ensure a high level of particle removal efficiency. Captures microorganisms and particulates on the surface of the membrane for subsequent analysis.
Material | Aluminum Oxide |
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