When I measure optical density in a microplate reader the absorbance is proportional to the concentration and the height of the liquid. Is this law (Beer-Lambert Beer's law) also valid for fluorescence and luminescence?
Let's say I prepare a fluorescent solution and measure e.g. the signal of 100uL100 μL and of 50uL50 μL. Do I get the half signal for 50uL50 μL?