Batch extraction in which the extraction phase attains a constant composition before phase separation.
Notes: - If the analytes are initially present as a solution in an immiscible liquid phase the process is synonymous with liquid-liquid extraction.
- If the sample is a solid that is partially soluble in the extraction phase then leaching may be a more appropriate term.
Source:
PAC, 2016, 88, 517. 'Glossary of terms used in extraction (IUPAC Recommendations 2016)' on page 526 (https://doi.org/10.1515/pac-2015-0903)