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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Fisherbrand™ Polyethersulfone Membranes
Fisherbrand™ Polyethersulfone Membranes features highly asymmetrical pore structure that offers effective loading capacity and high flow rate.
Wettability | Yes |
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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™ 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 |
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Hydrophobicity | Hydrophilic |
Autoclavable | Autoclavable |
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 |
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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 |
Cytiva Whatman™ ME 25 Plain Mixed Cellulose Ester Membranes
Facilitates the counting process and minimizes eye fatigue with color contrast between the surface and the colonies. Whatman™ ME 25 Plain Mixed Cellulose Ester Membranes are characterized by a smooth and more uniform surface.
Thickness (Metric) | 145 μm |
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Includes | Interleaving paper |
Pore Size | 0.45 μm |
Bubble Point | 2.8bar |
Flow Rate | 12.5s/100mL/12.5cm2 |
Material | Cellulose Acetate, Cellulose Nitrate |
Autoclavable | Autoclavable |
Membrane Type | ME25 |
Pore Size | 10 μm |
---|---|
Wettability | Hydrophobic |
Type | Filter Membranes |
Color | White |
Material | PTFE |
Filter Type | Screen Filter |
Autoclavable | Not Autoclavable |
Sterility | Non-sterile |
Membrane Type | Plain |
Merck Fluoropore™ Membrane Filters, 3 μm
Hydrophobic membrane with laminated backing for easier handling
Pore Size | 3.0 μm |
---|---|
Flow Rate | 286 mL/min x cm2 |
Wettability | Hydrophobic |
Type | Filter Membranes |
Color | White |
Material | PTFE |
Filter Type | Screen Filter |
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. |
Sartorius Stedim Biotech™ Polyethersulfone (PES) Membrane Filters for e.motion Dispenser, Gridded
Filters for colony counting, particle testing and microscopy.
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 |
ROBU VitraPOR™ Filter Disc, Surfaces Plane, Ground Cylindrical, 40 mm
The faces of the VitraPOR™ biplane filter discs from series 16 are precisely ground down to tight tolerances and plane surfaces.
Thickness (Metric) | 3.5 ± 0.2 mm |
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Material | Borosilicate Glass (3.3) |
No. per Pack | 10/Pk. |
Diameter (Metric) Membrane | 40 mm |
Sterility | Non-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.
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Type | Filter System |
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Sterility | Sterile |
ROBU VitraPOR™ Filter Disc, Untreated, Ground Cylindrical, 50 mm
The faces of the VitraPOR™ standard filter discs are press moulded and may show thickness deviations.
Thickness (Metric) | 4.5 ± 1.0 mm |
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Material | Borosilicate Glass (3.3) |
No. per Pack | 10/Pk. |
Diameter (Metric) Membrane | 50 mm |
Sterility | Non-sterile |
ROBU VitraPOR™ Filter Disc, Surfaces Plane, Ground Cylindrical, 25 mm
The faces of the VitraPOR™ biplane filter discs from series 16 are precisely ground down to tight tolerances and plane surfaces.
Thickness (Metric) | 2.5 ± 0.2 mm |
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Material | Borosilicate Glass (3.3) |
No. per Pack | 10/Pk. |
Diameter (Metric) Membrane | 25 mm |
Sterility | Non-sterile |
ROBU VitraPOR™ Filter Disc, Surfaces Plane, Ground Cylindrical, 130 mm
The faces of the VitraPOR™ biplane filter discs from series 16 are precisely ground down to tight tolerances and plane surfaces.
Thickness (Metric) | 8.0 ± 0.2 mm |
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Material | Borosilicate Glass (3.3) |
No. per Pack | 1 Ea. |
Diameter (Metric) Membrane | 130 mm |
Sterility | Non-sterile |
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.
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Material | Aluminum Oxide |
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