sorbent trap

https://doi.org/10.1351/goldbook.10201

Tube filled with porous sorbent typically used to extract analytes from the gas phase.

Note: The performance of a sorbent tube depends on the sorbent type, temperature, gas flow rate, and desorption time.
Source:
PAC, 2016, 88, 517. (Glossary of terms used in extraction (IUPAC Recommendations 2016)) on page 530 [Terms] [Paper]