Extraction in a biphasic system in which the main component of one phase is a highly fluorinated solvent (liquid-liquid extraction) or highly fluorinated sorbent (solid-phase extraction).
Source: PAC, 2016, 88, 517. 'Glossary of terms used in extraction (IUPAC Recommendations 2016)' on page 523 (https://doi.org/10.1515/pac-2015-0903)