Which syringe filter should I use?

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With all the different types of membranes, it is best to choose the right one for the job.  We recommend that you use the following table as a guide.

 

Membrane Selection Guide

MembranePropertiesApplicationIncompatible with
PVDFHydrophilic, low protein bindingAlcohols, biomoleculesBases, esters, ethers, ketones
PTFE HydrophobicHydrophobicOrganic solvents, acids, alcohols, bases, aromaticsAqueous samples without pre-wetting (to avoid high backpressure) 
Cellulose AcetateHydrophilicAqueous solutionsOrganic solvents
NylonHydrophilic, low protein bindingBases, HPLC solvents, alcohols, aromatic hydrocarbonsAcids, aggressive halogenated hydrocarbons, proteins
PESHydrophilic, low protein binding, fast flow ratesFiltration of butters and culture media-

Note: membranes with the opposite properties (hydrophobic/hydrophilic) may be available.