Field-flow fractionation, abbreviated FFF, is a separation technique where a field is applied to a fluid suspension or solution pumped through a long and narrow channel, perpendicular to the direction of flow, in order to cause separation of the particles present in the fluid, dependent on their differing "mobilities" under the force exerted by the field. It was invented and first reported by J.
field flow fractionation meaning:[Medicine] Separation of molecules and particles by a simultaneous action of carrier liquid flow and focusing field forces (electrical,sedimentation,or thermal),without a stationary phase.