A very reliable material as a filter membrane for excellent chemical stability against aqueous solutions with pH between 4 and 8, most alcohols, hydrocarbons and oils.

Nitrocellulose is a material routinely used in the manufacture of membrane filters.

These membranes are naturally hydrophilic, with a very uniform microstructure, allowing excellent levels of particulate matter and perfect behavior in microbiological work.

In those cases may be useful gridded membranes with the green background color or black, so by contrast, improved visualization and cuenteo colonies.
Another important feature of these membranes is their high adsorption. Therefore, and in combination with paper chromatography FILTER-LAB PC series are particularly suitable in identification procedures on samples of components of nucleic acids and proteins by transfer techniques.

A membrane is appreciated by its good stability under alkaline or acidic samples (pH: 3-12). Another of its main characteristics is its high non-specific adsorption, which makes it very suitable for use, with chromatography paper, techniques for transfer of nucleic acids.

A membrane chemically very resistant to samples of organic solvents such as acetone, acetonitrile, ethanol. It is of hydrophilic nature.

Is recommended for use in filtering samples of HPLC mobile phases, even in the filtration of biological samples due to its low nonspecific adsorption.

Available in pores of 0.20 and 0.45 μm.

PTFE is a material that is characterized by being hydrophobic and therefore have excellent resistance to chemical and physical franta pure solvents and all sorts of harsh chemicals (pH 1-14).

By their nature, can be used in filtration systems or gas sterilization, air samplers, aerosol samples cleaning and venting tasks.

They are available in pores of 0.20, 0.45, 1.20 and 5.00 μm.

Polycarbonate membranes are characterized by very precise pore diameters and quite cylindrical, good thermal stability (up to 140 º C) and low nonspecific adsorption.

The manufacturing process begins with the manufacture of polycarbonate sheet. Subsequently, these plates are exposed to the impact of particles in a nuclear reactor, marking the pores. Finally, the pores are made using a chemical solution.

They are particularly suitable for the retention of particles of specific size, visualization of particles by microscope, chemotaxis, oceanographic analysis, water analysis, etc..