Fluorescence and UV-Visible SpectrophotometersOnline version Label the parts of spectrophotometers, and complete the phrases. by Heather Holmes 1 Absorption 2 Fluorescence 3 Excitation Monochromator 4 Emission Monochromator 5 Monochromator 6 Fluorescence Detector 7 Absorbance Detector 8 is NOT measured. 9 is reduced by sample absorption, generating a measurable signal. 10 Fewer 11 not all molecules fluoresce. 12 higher