gravitational field-flow fractionation

initialism: GFFF
https://doi.org/10.1351/goldbook.09936

Field-flow fractionation in which the physical force field is the Earth’s gravitational field.

Notes:
  1. GFFF can fractionate particulate matter in the micrometre size range (large microorganisms, blood cells, sediments, etc).
  2. Since the Earth’s gravitational field produces relatively weak forces, this mode is only appropriate for micron size particles, hence the separation is an example of hyperlayer focusing field-flow fractionation.
Source:
PAC, 2017, 90, 181. (Terminology of separation methods (IUPAC Recommendations 2017)) on page 221 [Terms] [Paper]