Membrane Filters

Supplier: Cytiva

Ideal for prefiltration of difficult-to-filter solutions and serum. Designed to be used in applications requiring excellent retention properties combined with tensile strengths in excess of 200bar (3000psi).

Supplier: Cytiva

The Polypropylene/Polyethylene Separator Depth Filters have outstanding wet strength and can be folded or handled the same as laboratory paper. Because of their material of construction, these disc filters are virtually inert to chemical and biological agents.

Supplier: Cytiva

Useful for a wide range of both aqueous and solvent-based applications. Hydrophilic nylon filters offer excellent chemical compatibility with esters, bases, and alcohols. Not recommended for acids >1N or halogenated solvents.

Supplier: Cytiva

Ideal for biological, pharmaceutical, and sterilizing filtration requirements. Supor® hydrophilic polyethersulfone membranes offer higher fluid flow rates, lower protein binding, lower extractables, and greater strength than other cellulosic (acetate, nitrate) membranes. Provide some of the highest water flow rates and fluid filtration capacities of any sterilizing grade membrane filter. Nonsterile, except for 28147-979, which is gamma-irradiated.

Supplier: Cytiva

Ideal for the isolation and enumeration of yeast and mold colonies from water and beverages using the Membrane Filter Technique referenced in Standard Methods for the Examination of Water and Wastewater. Dark background provides an excellent contrast for counting opaque colonies and light colored particulate.

Supplier: Cytiva

Whatman mixed cellulose ester membranes are composed of cellulose acetate and cellulose nitrate. These membranes are characterized by a smoother and more uniform surface than pure nitrocellulose filters.

Supplier: Cytiva

Mixed cellulose ester, WME range, circles, gridded. Whatman mixed cellulose ester membranes are composed of cellulose acetate and cellulose nitrate. These membranes are characterized by a smoother and more uniform surface than pure nitrocellulose filters.

Supplier: Cytiva

Cellulose nitrate membranes, circles, plain. Recommended for the majority of routine applications, this membrane is manufactured under strictly controlled conditions.

Supplier: Cytiva

Recommended for microbiological culturing and sample preparation, these cellulose nitrate membrane filters offer very narrow pore size distribution and low levels of extractables.

Supplier: Cytiva

Mixed cellulose ester, WME range, circles, gridded. Whatman mixed cellulose ester membranes are composed of cellulose acetate and cellulose nitrate. These membranes are characterized by a smoother and more uniform surface than pure nitrocellulose filters.

Supplier: SARTORIUS CORPORATION EDI

Cellulose nitrate hydrophilic, gridded membrane filters for colony counting, particle testing and microscopy, with outstanding recovery rates for microorganisms.

Supplier: SARTORIUS CORPORATION EDI

Hydrophobic cellulose nitrate and cellulose acetate gridded membrane filters for colony count and sterility testing, with outstanding retention rates for microorganisms.

Supplier: Cytiva

Whatman mixed cellulose ester membranes are composed of cellulose acetate and cellulose nitrate. These membranes are characterized by a smoother and more uniform surface than pure nitrocellulose filters.

Supplier: Cytiva

Nuclepore™ track-etched hydrophilic membrane filters offer a highly defined pore size cut-off in the submicron range, enabling particle deformity measurement and capture of extremely small particles. The membranes have sharply defined pores, high flow rates, and excellent chemical and thermal resistance. They are suitable for a variety of samples and applications, including microscopy, cytology, parasitology, and certain air and oceanography analyses.

Supplier: Cytiva

Suitable for use in a wide range of specialized applications, including HPLC mobile phase filtration and degassing, bacterial analysis by epifluorescent light microscopy, ultra cleaning of solvents, gravimetric analysis, and liposome extrusion.

Supplier: Cytiva

For preparing HPLC samples and solvent clarification. Ideal for both aqueous and nonaqueous solutions. Very low extractables, minimizing the risk of introducing spurious peaks in HPLC analyses. Excellent chemical compatibility with common solvents, bases, and esters.