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spectrofluorometer

n. (context physics chemistry English) A spectrometer used in fluorescence spectroscopy

Wikipedia
Spectrofluorometer

A spectrofluorometer is an instrument which takes advantage of fluorescent properties of some compounds in order to provide information regarding their concentration and chemical environment in a sample. A certain excitation wavelength is selected, and the emission is observed either at a single wavelength, or a scan is performed to record the intensity versus wavelength, also called an emission spectra. See Fluorescence spectroscopy