gravitational field-flow fractionation
potential barrier field-flow fractionation
CHMO:0001631
A technique for separating particles from solution by placing the sample in a narrow channel, such that the Earth's gravitational field is perpendicular to the channel, and varying the ionic strength of the solution or Hamaker constant/surface potential of the particles.
potential barrier GrFFF
potential barrier GFFF
PBGFFF