scavenger 

https://doi.org/10.1351/goldbook.S05495
A substance that reacts with (or otherwise removes) a trace component (as in the scavenging of trace metal ions) or traps a reactive reaction intermediate.
See also: inhibition
Source:
PAC, 1994, 66, 1077. (Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)) on page 1162 [Terms] [Paper]
Citation: 'scavenger' 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.S05495 RIS BibTex EndNote
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Last revised: February 24, 2014