https://doi.org/10.1351/goldbook.09940
Mechanism of field-flow fractionation of particles greater than \(\pu{1 \upmu\!m}\) in diameter relying on proximity to the accumulation wall.
Notes:
- In StFFF the elution order is opposite to that of Brownian field-flow fractionation mode and larger particles move ahead of smaller ones.
- It was originally considered that particles are in contact with the accumulation wall during the entire migration time and consequently the centre of larger particles are situated closer to the centre of the channel in the faster flow streams. This is never achieved in practice due to hydrodynamic lift forces away from the accumulation wall.