separation method membrane extraction with a sorbent interface-gas chromatography MESI-GC 2009-05-20T02:28:45Z https://orcid.org/0000-0001-5985-7429 membrane extraction with sorbent interface gas chromatography A separation method where the sample is first transferred from one phase (the 'donor' or 'feed' phase) to another (the 'acceptor' or 'strip' phase) across a non-porous non-polar polymer membrane. The membrane extracts the analytes from their matrix, and these are subsequently trapped on a polymeric trap with a porous sorbent using a carrier gas stream. In the second step, the mixture in the carrier gas stream is further separated by gas chromatography. membrane extraction with sorbent interface-gas chromatography CHMO:0001790