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 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 |
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 |
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.
Thickness (Metric) | 1 mm |
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Material | PTFE |
No. per Pack | 10 Pk. |
Robu™ Series 15 Filter Discs
Robu™ Series 15 Filter Discs feature a unique porous structure, which make them flexible and incredibly versatile for a variety of applications.
Type | Filter Disc |
---|---|
Shape | Cylindrical |
Description | Untreated surface |
Material | Glass |
Cole Parmer™ Nylon Membranes
Ideal for filtering or sterilizing nonprotein-containing biological solutions.
Sartorius Polycarbonate Track Etch Membrane Filters
Manufactured from high grade polycarbonate film using track-etch technology.
Thickness (Metric) | 23 to 27 μm |
---|---|
Quantity | 100/Pk. |
Material | Polycarbonate Track-Etched (PCTE) |
For Use With (Application) | Particulate analysis; epifluorescence miroscopy; fluid clarification; cytology; cell biology; bioassays; water microbiology; environmental analysis. |
Autoclavable | Autoclavable |
Cytiva Whatman™ 25mm Nuclepore™ Polycarbonate Track-Etched Membranes
Manufactured from high-quality polycarbonate film and track-etched for high pore size precision. Whatman™ 25mm Nuclepore™ Polycarbonate Track-Etched Membranes combine high flow rates and chemical and thermal resistance with sharply defined pores, making them suitable for microscopy, cytology, parasitology, and certain air and oceanography analyses.
Flow Rate | High |
---|---|
Diameter (Metric) | 25 mm |
Material | Nucleopore Polycarbonate |
Hydrophobicity | Hydrophilic |
For Use With (Application) | Epifluorescence microscopy, environmental analysis, cell biology |
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 |
Kartell™ Polyethylene Disc Membrane
These discs are made of polyethylene and have good chemical resistance. Kartell™ Polyethylene Disc Membrane is used to separate the filter paper from the funnel plate when working with a Buchner Funnel.
Pore Size | 300 μm |
---|---|
Description | Disc Membrane |
Material (Membrane) | Polyethylene |
Material | Polyethylene |
Filter Type | Disc Membrane |
No. per Pack | 10/Pack |
For Use With (Application) | Interface between filter paper and perforated Buchner plate |
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 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 |
---|---|
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 |
Cytiva Whatman™ Polyester Drain Discs
Provides a flat surface to eliminate filter tearing or rupturing. Whatman™ Polyester Drain Discs are used to support membrane filters. They are available in a variety of diameters for use in a range of devices.
Thickness (Metric) | 100 μm |
---|---|
Material | Polyester |
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 |