stir bar sorptive extraction

https://doi.org/10.1351/goldbook.10259

Extraction of compounds from solution by a sorbent coated magnetic stir bar by rapid stirring (direct immersion) or by exposure to the headspace above a sample (headspace extraction).

Notes:
  1. Related devices for simultaneous stirring and sampling include rotating disc, stir rod, and stir membrane devices.
  2. Rapid stirring accelerates mass transfer overcoming some of the limitations of diffusion controlled mass transfer in sessile solutions.
Source:
PAC, 2016, 88, 517. (Glossary of terms used in extraction (IUPAC Recommendations 2016)) on page 545 [Terms] [Paper]