Is there any relation between UV absorbance and PL emission spectrum?

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Adam B Shapiro

Is the absorbance of the sample high enough to absorb the light being emitted? This is called the inner filter effect.

Giuseppe Baldacchini

There is a whole world of relations between absorbance and PL, and quite often the two spectra are superimposed. There are methods to separate them, for instance by measuring the excitation emission spectroscopy. Good luck, Giuseppe Baldacchini