Membranes for laboratory filtration

Microfiltration is a physical filtration method in which a fluid is passed through a membrane with a certain porosity, with the aim of separating microorganisms and suspended particles from the liquid, solvent or gas subjected to the process. The membrane is positioned on a rigid filter support, which in turn is located between the funnel where the liquid to be filtered is poured and the filter system, be it a filtration ramp or a single filter system.

Membrane Solutions produces membrane filters from various materials including cellulose esters (CN cellulose nitrate, CA cellulose acetate or MCE mixed cellulose esters) or from materials such as Nylon, PTFE, PES, PVDF and PP.

The diameter of the membrane can be 13, 25, 47, 50, 90, 142 or 293 mm.

The typical pore size of membranes used for microfiltration is approximately 0.1 - 0.22 - 0.45 - 0.8 - 1 µm.

Membranes can be sterile or non-sterile.

Most non-sterile membranes can be sterilized. The color of the membranes is useful for highlighting the particles or microorganisms that have been retained, the membranes can be white or black, simple or reticulated.


Sterility and packaging

The sterile membranes, ideal for microbiological analysis and sterilization, are packaged in a single peel-pouch sachet and can be packaged in ribbon sachets for automated dispensing with a dispenser.

The non-sterile membranes for general and chemical use are packaged in small boxes.

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