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Membrane Filters

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Whatman’s range of membrane filters with advanced technical specifications are the preferred choice for a wide range of applications. The membrane filters offer accurately controlled pore size distribution and higher strength and flexibility, which ensure reproducibility and consistency.

Tisch Scientific supplies competitively-priced Whatman membrane filters, including PTFE Filters, PVDF Membrane Filters, Nylon Membrane Filters, Cellulose Acetate Membrane Filters, Polypropylene Membrane Filters, PES Membrane Filters, Track Etched Polycarbonate Membrane Filters and MCR Membrane Filters.

Whether you’re performing simple bottle-top filtration or operating a complex vacuum manifold system, our expert staff is ready to help you with your membrane filter selections. In addition to consultations, we also offer a sample program that will be shipped to you right away.

 

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  1. PTFE Membrane Filters

     
    PTFE membrane filters are used in a variety of applications in industries such as pharmaceutical, biosciences, laboratory testing, food and beverages, chemical engineering and air filtration. PTFE membranes have an extensive compatibility to numerous chemicals and can be exposed to higher temperatures. They are most commonly used for the filtration of organic, alkali, and strong acidic solvents. We offer PTFE Membranes in both the natural state (Hydrophobic) and the treated state (Hydrophilic) to work in an array of different applications.
     

    For Hydrophilic PTFE, click here.

  2. PVDF Membrane Filters

     
    PVDF (polyvinylidene fluoride) is a hydrophobic, solvent resistant membrane that is known for it's high temperature resistance and high particulate removal efficiencies. PVDF is commonly used in the offshore oil and plumbing industries, and is suitable for Gas, Vapor, High-Temperature, Food, and Medicine Filtration. PVDF is good to use with alcohols, proteins, weak acids, peptides, and other biomolecules while it must be avoided with strong acids, bases, ethers and ketones. We offer PVDF Membranes in both the natural state (Hydrophobic) and the treated state (Hydrophilic) to work in an array of different applications.
     

    For hydrophilic PVDF, click here

  3. Nylon Membrane Filters

     
    Nylon is commonly used for general laboratory filtration, and filtration of HPLC samples prior to injection. Nylon binds protein, and should not be used when maximum protein recovery is important. Nylon Membrane Filters are commonly used in the industrial waste water and beverage industries. These highly durable and tear resistant membranes are hydrophilic and constructed to wet evenly eliminating the need for wetting agents.
  4. Cellulose Acetate Membrane Filters

     
    Cellulose Acetate (CA) is a great hydrophilic material for filtering aqueous and alcoholic media, especially at high temperatures. Cellulose Acetate is completely uneffected by temperatures up to 135°C (275°F). Cellulose Acetate membrane filters are the lowest protein binding filters currently available, they provide extremely high throughputs and require less filter changes when filtering high protein solutions. They are great for protein and enzyme filtration, biological fluid filtration, tissue culture media filtration and diagnostic cgytology.
  5. Cellulose Nitrate Membrane Filters

     
    Cellulose Nitrate (CN) is a very durable and flexible membrane material for applications involving sample preperation, biomedical tissue culture, and pharmaceutical filtration. This membrane material exhibits very high thermal stability and is very easy to handle compared to other membranes when loading into filter holders or other instruments. They also show low shrinkage rates during autoclave cycles due to their high temperature resistance.
  6. Polypropylene Membrane Filters

     
    Polypropylene (PP) Membrane filters are naturally hydrophobic and are best suited for industrial applications such as gas and chemical filtration. They are also widely used in the automotive industries. Polypropylene has extremely low extractable levels ensuring accurate and consistent results for sensitive chromotography applications. They also exhibit very little protein binding which is necessary for sample recovery in small protein samples.
  7. PES Membrane Filters

     
    PES membranes are hydrophilic, low protein and drug binding, and are ideal for use in life science applications. Due to the remarkable asymmetrical pore structure of the PES Membrane, they have a high dirt loading capacity and a remarkable flow rate as compared to symmetrical membranes. They are also commonly used in applications such as water filtration, chemical reagent filtration and high-temperature liquid filtration.
  8. Track-Etched Polycarbonate Membrane Filters

     
    Our Track-Etched Polycarbonate Membranes are produced from a high quality polycarbonate film providing a smooth flat surface with sharply defined pore sizes. These membranes exhibit high flow rates, low levels of extactables, and chemical and thermal resistance. Polycarbonate Membranes are designed for the detection of particulates in highly corrosive fluids. These membranes are utilized in epifluorescence microscopy, environmental analysis, cell biology, fuel testing, water microbiology and air analysis applications.
  9. MCE Membrane Filters

     
    MCE (Mixed Cellulose Ester) Membranes are produced of cellulose acetate and cellulose nitrate. These membranes are biologically inert and commonly used for analytical applications. They provide a more uniform surface than pure nitrocelluose filters. Mixed Cellulose Ester Membranes are commonly used in the microdialyisis of proteins as well as DNA, air particulate monitoring, and microbiology analysis applications. They are provided as plain white membranes, or in several gridded options. The color distinction on the gridded versions facilitates particle detection and reduces common eye fatigue.
     

    For White MCE with Black/Blue Grid, click here

    For White MCE with Black Grid, click here

    For White MCE with Green Grid, click here

    For Black MCE with White Grid, click here

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