Suspension of micron-sized sorbent particles distributed throughout a web of poly(tetrafluroethylene) microfibrils formed into a thin disc of various diameters.
Note: For general use the flexible discs are supported on a sintered glass disc in a filtration apparatus using suction to generate the desired flow through the membrane.
Source:
PAC, 2016, 88, 517. 'Glossary of terms used in extraction (IUPAC Recommendations 2016)' on page 544 (https://doi.org/10.1515/pac-2015-0903)