needle trap

https://doi.org/10.1351/goldbook.10250

Gas-tight syringe with a sorbent-filled needle.

Note: Vertical movement of the plunger allows bidirectional flow of sample through the sorbent bed (active sampling). Alternatively, sampling can occur by diffusion of analytes into the syringe needle (passive sampling).
Source:
PAC, 2016, 88, 517. (Glossary of terms used in extraction (IUPAC Recommendations 2016)) on page 543 [Terms] [Paper]
Citation: 'needle trap' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.10250 RIS BibTex EndNote
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