Short disposable column containing a bed of porous particles immobilized between two porous frits.
Note: The particles are sized to allow sample processing by gravity, gentle suction or low pressure.
Source:
PAC, 2016, 88, 517. 'Glossary of terms used in extraction (IUPAC Recommendations 2016)' on page 541 (https://doi.org/10.1515/pac-2015-0903)