What is Asymmetrical Flow Field-Flow Fractionation (AF4)?
Asymmetrical Flow Field-Flow Fractionation (AF4) is a sophisticated separation technique used to fractionate and characterize particles, macromolecules, and nanoparticles based on their hydrodynamic size. This technique leverages a cross-flow field perpendicular to the channel flow, enabling the separation of components without the need for a stationary phase, which is typical in traditional chromatography.
