Chemistry
Luminescence Quenching Mechanisms in Analytical Fluorometry
Quick fact
Oxygen is one of the most common quenchers in solution, and it can reduce fluorescence intensity by up to 80% even at trace levels, which is why many fluorometric measurements are conducted in deoxygenated environments.
Why this is interesting
You have a fluorescent sample that suddenly glows dimmer than expected. Why? The answer lies in quenching—a silent process that steals the light before it escapes.