Cellulose Nitrate Membrane Filters

Source: Sartorius


Cellulose nitrate membrane is very advantageous for diagnostic kits.

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Brochure: Sartorius Microfilters

Cellulose nitrate is a standard material for membrane filters and offers a wide range of pore sizes from 8 µm to 0.45 µm. The larger pore sizes (8 µm, 5 µm, 3 µm) find use for cell retention, the 0.45 µm pore size for particle collection. The high non-specific adsorption of the cellulose nitrate membrane is very advantageous for diagnostic kits.

Gridded cellulose nitrate membranes are the optimal, and most commonly used filters for microbiological testing of water, beverages, foods, pharmaceuticals, cosmetics and many other similar products. The cellulose nitrate membrane is compatible with aqueous solutions (pH 4–8), hydrocarbons and several other organic solvents. The non-specific adsorption decreases with increasing pore size, see example for ?-globulin

Cellulose Nitrate Membrane Applications & Features:

  • Microbiological examination of hard-to-filter products and applications where a higher flow rate is required. Microbiological testing of airborne bacteria.
  • Excellent culture medium
  • high flow rate
  • good growth of yeasts and molds
  • Easier filtration and larger volumes possible for samples that contain particles or have a high viscosity.
  • Grid does not inhibit microbial growth.
  • The high flow rate allows fast filtration and is better for hard-to-filter products.
  • Larger pore size promotes growth of microorganisms linke Alicyclobacillus and some yeasts and molds.
  • Can be used for airborne microbes at places with high air humidity.


Click Here To Download:
Brochure: Sartorius Microfilters

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