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 |
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 |
Merck Fluoropore™ Membrane Filters, 1 μm
Hydrophobic membrane with laminated backing for easier handling
Pore Size | 1.0 μm |
---|---|
Wettability | Hydrophobic |
Type | Filter Membranes |
Color | White |
Material | PTFE |
Filter Type | Screen Filter |
Hydrophobicity | Hydrophobic |
Autoclavable | Not Autoclavable |
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 |
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 |
Cytiva Whatman™ Cellulose Acetate Membranes
Prepares liquid scintillation cocktail for scintillation counter measurements. Whatman™ Cellulose Acetate Membranes are highly heat resistant and can filter hot liquids and hot gases.
Material | Cellulose Acetate |
---|---|
Hydrophobicity | Hydrophilic |
Merck Fluoropore™ Membrane Filters, 5 μm
Hydrophobic membrane with laminated backing for easier handling
Pore Size | 8 μm |
---|---|
Flow Rate | 620 mL/min x cm2 |
Wettability | Hydrophilic |
Type | Filter Membranes |
Color | White |
Material | MCE |
Hydrophobicity | Hydrophilic |
For Use With (Application) | For use in air monitoring; Fluid monitoring; Particle collection and analysis; QC of fluid holding tanks. |
Autoclavable | Not Autoclavable |
Sterility | Non-sterile |
Merck Omnipore™ Membrane Filters, 5 μm
Hydrophilic PTFE polymer membrane filter compatible with virtually all solvents, acids, and alkaline solutions. Omnipore™ Membrane Filters are biologically and chemically inert.
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 |
Merck Isopore™ Membrane Filters, 0.8 μm
Use for analyses of airborne contaminants and other particles using optical or electron microscopy. Isopore™ Polycarbonate Membrane Filters have a smooth, glass-like surface for clearer sample observation. Available in a variety of pore sizes/flow rates, diameters and colors.
Pore Size | 0.8 μm |
---|---|
Bubble Point | 8.5 psi |
Flow Rate | Avg. 85 mL/min x cm2 (typical results (at 10 psi);125 mL/min x cm2/psi) |
Wettability | Hydrophilic |
Type | Filter Membranes |
Color | White |
Material | Polycarbonate |
Filter Type | Screen Filter |
Hydrophobicity | Hydrophilic |
For Use With (Application) | Air Analysis; Cell Biology; Cell Culture; Bioassays; Cytology; Environmental Analysis; Epifluorescence. |
Autoclavable | Not Autoclavable |
Sterility | Non-sterile |
Gas Flow Rate | 20.0 L/min/cm2 |
Merck Isopore™ Membrane Filters, 0.6 μm
Use for analyses of airborne contaminants and other particles using optical or electron microscopy. Isopore™ Polycarbonate Membrane Filters have a smooth, glass-like surface for clearer sample observation. Available in a variety of pore sizes/flow rates, diameters and colors.
Pore Size | 0.6 μm |
---|---|
Color | White |
No. per Case | 100Pack |
Quantity | 100/Pk. |
Material | Polycarbonate |
Hydrophobicity | Hydrophilic |
For Use With (Application) | Air Analysis; Cell Biology; Cell Culture; Bioassays; Cytology; Environmental Analysis; Epifluorescence. |
Sterility | Non-sterile |
Bubble Point | 8.5 psi |
Flow Rate | Avg. 43 mL/min x cm2 (typical results (at 10 psi);62 mL/min x cm2/psi) |
Wettability | Hydrophilic |
Type | Filter Membranes |
Filter Type | Screen Filter |
Autoclavable | Not Autoclavable |
Gas Flow Rate | 10.0 L/min/cm2 |
Thickness (Metric) | 130 μm |
---|---|
Pore Size | 0.45 μm |
Bubble Point | 2.4bar |
Flow Rate | 70mL/min./cm2/bar |
Type | Membrane Filter |
Material (Membrane) | Cellulose Nitrate |
Color | White |
Material | Cellulose Nitrate |
Filter Type | Membrane Filter |
No. per Pack | 100/Pk |
For Use With (Application) | For many general laboratory applications where a membrane with a high non-specific adsorption is suitable |
Autoclavable | Autoclavable |
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 |
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 |