UV stabilizer

https://doi.org/10.1351/goldbook.U06584
A substance added to a sample to prevent photodeterioration by @UT07492@ (UV) light.
See:
photochemical reaction
Source:
PAC, 1996, 68, 2223. (Glossary of terms used in photochemistry (IUPAC Recommendations 1996)) on page 2283 [Terms] [Paper]