Cellulose Acetate Membrane Filter

Johnson Test Papers’ cellulose acetate membranes are composed of pure cellulose acetate modified to provide researchers with high flow rates, thermal stability and low protein and enzyme binding capacity with the lowest binding filters available minimising sample loss and sample contamination. These hydrophilic membranes are a very reliable material therefore excellently suited for use in pressure filtration devices and both aqueous and alcoholic media. They also have high solvent resistance, particularly to low molecular weight alcohols.

Cellulose acetate membranes have a very low aqueous extract of < 2 % and are available in the common pore sizes.

A pore size of 0.2μm is the filter of choice for sterile filtration and clarification of aqueous solutions (pH 4 - 8), such as nutrient media, buffers and sera. It can be sterilised by most common methods without sacrificing membrane integrity. Cellulose acetate is also compatible with hydrocarbons and oil.

Due to their high chemical resistance, cellulose acetate membrane filters from Johnson Test Papers reliably prepare liquid scintillation cocktails for scintillation counter measurement. Additionally, these membranes present high physical strength and dimensional stability (130 psi) and can filter liquids and gases up to 50 °C.

For additional information on OEM specific applications, Johnson Test Papers has the product breadth and flexibility to meet your needs, as well as the quality standards to help ensure your success. Contact us to discuss application requirements, request free product samples and order products.