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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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1 – 15 of 367 results
1

Fisherbrand™ Mixed Cellulose Ester Membranes Sterile Filter

Fisherbrand™ Mixed Celluloses Esters Membranes Sterile Filters are composed of cellulose acetate and cellulose nitrate.

Promotions are available
EDGE
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
2

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.

Promotions are 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
3

Fisherbrand™ Polyethersulfone Membranes

Fisherbrand™ Polyethersulfone Membranes features highly asymmetrical pore structure that offers effective loading capacity and high flow rate.

Promotions are available
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
4

Fisherbrand™ PTFE Filter Membranes

Fisherbrand™ PTFE membrane is hydrophobic filter made of polytetra-fluorethylene laminated with PP layer.

Promotions are available
EDGE
Thickness (Metric) 0.16 mm
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)
5

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.

Promotions are available
EDGE
Color White
Material Cellulose Nitrate
Autoclavable Autoclavable
6

Sartorius™ 11306 Series Non-Sterile Cellulose Nitrate (CN) Membrane Filters

11306 Series Non-Sterile Cellulose Nitrate (CN) Membrane Filters are hydrophilic, have high flow rates thanks to their symmetrical structure, and are compatible with aqueous solutions (pH 4 – 8), hydrocarbons, and several other organic solvents.

Pore Size 0.45 μm
Disposable Single-use
Material (Membrane) Cellulose Nitrate
Color White
Quantity 100 Pk.
Material Cellulose Nitrate
For Use With (Application) For many general laboratory applications where a membrane with a high non-specific adsorption is suitable
Sterility Non-sterile
Thickness (Metric) 130 μm
Bubble Point 2.4 bar
Flow Rate 70 mL/min./cm2/bar
Type Membrane Filter
Format Disc
Thickness (English) 5 mil
Filter Type Membrane Filter
No. per Pack 100 Pk.
Autoclavable Autoclavable
7

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.

Promotions are available
EDGE
Material Nylon
Hydrophobicity Hydrophilic
Autoclavable Autoclavable
8

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
Material (Membrane) Cellulose
Color White
Material MCE
Filter Type Membrane Filter
Hydrophobicity Hydrophilic
Autoclavable Not Autoclavable
Sterility Non-sterile
10

Sartorius Stedim Biotech™ Polyethersulfone (PES) Membrane Filters for e.motion Dispenser

General purpose membrane that provides excellent performance with most solutions when retentate recovery is of primary importance.

12

Cole Parmer™ Nylon Membranes

Ideal for filtering or sterilizing nonprotein-containing biological solutions.

13

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
14

Merck MF-Millipore™ Membrane Filter, 1.2 μm

Mixed cellulose esters (MCE) membrane, hydrophilic

Pore Size 1.2 μm
Flow Rate 270 mL/min x cm2
Wettability Hydrophilic
Type Filter Membranes
Color White
Material MCE
Hydrophobicity Hydrophilic
Autoclavable Not Autoclavable
Sterility Non-sterile
Membrane Type Plain