Postnova is the leading manufacturer of analytical instruments based on the principle of Field-Flow Fractionation (FFF). With an application range of 1 nm to 100 µm and 1000 Da up to several MDa, FFF is one of the most potent and flexible analytical tools for the fractionation of organic and inorganic nano- and microparticles, synthetic and biological polymers, proteins, viruses, antibodies, liposomes or exosomes in complex aqueous and organic matrices. Postnova provides a complete range of FFF instrumentation including Asymmetrical Flow FFF, Electrical Asymmetrical Flow FFF, Centrifugal FFF, Thermal FFF and Gravitational SPLITT along with sophisticated detection systems as UV-vis Spectroscopy, Multi-Angle Light Scattering, Dynamic Light Scattering, Intrinsic Viscosity, RI and ICP-MS.
EAF4 Electrical-Asymmetrical Flow FFF for Characterization of sample CHARGE and SIZE
The EAF4 technology combines the principle of electric and asymmetric flux FFF to characterize complex charged molecules.