Porous sorbent with surface-bound phenylboronic acid groups for the selective extraction of bifunctional compounds by reversible formation of 5- or 6-membered covalent cyclic boronic acid complexes.
Note: Extraction occurs at a basic \(\pu{pH}\) for compounds with hydrogen-donating functional groups on neighbouring carbon atoms (1,2- and 1,3-). The analytes are released by elution with an acidic aqueous-organic solvent solution.
Source:
PAC, 2016, 88, 517. 'Glossary of terms used in extraction (IUPAC Recommendations 2016)' on page 546 (https://doi.org/10.1515/pac-2015-0903)