supercritical fluid extraction

initialism: SFE
https://doi.org/10.1351/goldbook.10229
Use of a supercritical fluid to extract analytes from a solid or supported liquid sample.
Notes:
  1. The powdered sample, or supported liquid, is packed into a vessel and extracted using static or dynamic extraction conditions. The extracted material is typically recovered by reducing the pressure of the extraction fluid, allowing it to evaporate.
  2. The most common supercritical fluid for extraction is carbon dioxide (critical point = \(\pu{39.9^{\circ}C}\) and \(\pu{73.8 bar}\)). Its extraction properties are varied by changing its density (temperature and pressure) or by addition of polar organic solvents.
Source:
PAC, 2016, 88, 517. 'Glossary of terms used in extraction (IUPAC Recommendations 2016)' on page 538 (https://doi.org/10.1515/pac-2015-0903)