CHROMAFIL® syringe filters from Macherey-Nagel

These syringe filters are used for filtration of suspended matter from liquid samples, with high flow efficiency and little to no clogging. Designed specifically for chromatography, a HPLC Certification is available on the manufacturer website. With a polypropylene (PP) housing and ultrasonically sealed shells, CHROMAFIL® syringe filters have better solvent stability compared to acrylate and polystyrene filters - with no glue and therefore no extractable components from glue.
The thick rim of the housing is ideal for use with laboratory robots (e.g. Benchmate™). Filter inlet and outlet can be fitted to CHROMABOND® columns for selective sample preparation with the aid of a special adaptor. All filters can be autoclaved at 121 °C and 1.1 bar for 30 minutes.

CHROMAFIL® filters are colour-coded for easy identification - filters with 0.2 µm pores have yellow upper housing, while 0.45 µm filters have colourless upper housing. With Luer lock entry for a safe connection on the "high pressure" entry side, and the symmetrical construction enables back-filtration at lower pressures. Outlet is either standard Luer slip (Ø3 mm filters and Ø25 mm filters) or minispike luer with exceptionally low dead volume and small OD (Ø15 mm filters).

Polyester (Polyethylene terephthalate, PET): This hydrophilic multipurpose membrane is ideal for both polar and nonpolar solvents. Especially suited for mixtures of water and organic solvents. With no cytotoxicity, it does not inhibit the growth of microorganisms and higher cells.

• Filter diameter: 25 mm
• Pore size: 0.45 µm
• Colour (inlet): Transparent
• Colour (outlet): Orange