inner filter effect
  1. In an emission experiment, an apparent decrease in emission @Q04991@ and/or distortion of bandshape as a result of reabsorption of emitted radiation.
  2. During a light @I03255@ experiment, absorption of incident radiation by a species other than the intended primary @A00034@.
PAC, 1996, 68, 2223. (Glossary of terms used in photochemistry (IUPAC Recommendations 1996)) on page 2247 [Terms] [Paper]