Syringe Filters

Disposable Syringe Filter Units

• Minimum sample hold-up: Unit housings are specifically designed to maximize sample recovery
• High purity: Non-pigmented housing and integral filter sealing assure that filtrates will not be adulterated due to pigment, dye, or adhesives leaching into the filtrate
• Convenient: Each unit is clearly marked with an identifying code to denote pore size, membrane material and housing polymer
• Sterile: Units can be purchased pre-sterilized and individually packaged,or nonsterile in bulk pack
• All polypropylene can be autoclaved, Acrylic can not be autoclaved
Mixed Cellulose Esters (MCE, Nitrocellulose)
• Properties: A hydrophilic membrane
• Higher protein binding than cellulose acetate for most proteins
• High porosity provides a high flow rate
Nylon
• Properties: Strong, hydrophilic membrane
• Compatible with aqueous and alcoholic solutions, as well as most HPLC solvents.
• Convenient: Prewetting not required
• Pure: Minimal extractables
• High binding capacity for proteins, DNA and RNA
Cellulose Acetate (Acetate)
• Standard: A commonly used hydrophilic membrane
• Low protein binding, suitable for aqueous protein solutions
• Nitrate-free, suitable for groundwater filtration • Housing material: polypropylene (3, 13, 25 mm, 33mm, 47 mm)
PTFE hydrophilic
• Versatile: Good chemical resistance
• Compatible with many solvent mixtures used in HPLC, e.g. Acetonitrile/Water PTFE hydrophobic
• Application: use as vent