Postnova Analytics Inc. has released a white paper demonstrating how its novel Electrical and Asymmetrical Field Flow Fractionation (EAF4) technology can be utilized to separate a variety of nano-sized materials while simultaneously calculating surface charge.
The Postnova Analytics EAF2000 is the only field-proven system that combines the principle of Electrical and Asymmetrical Field Flow Fractionation in a single platform. Electrical and cross-flow fields are applied together across the FFF channel allowing the user to perform separations by size while simultaneously measuring the particle charge based on electrophoretic mobility. Proven applications have been demonstrated in the separation and characterization of complex proteins, antibodies, viruses, nanoparticles, colloids and polymers.