Why is Raman spectroscopy less sensitive than fluorescence spectroscopy?

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queen_honey_blossom answered 2 years ago

Which spectroscopy is more sensitive: fluorescence or absorption? Why? (2) Between fluorescence and phosphorescence: which one...

Which spectroscopy is more sensitive: fluorescence or absorption? Why? (2) Between fluorescence and phosphorescence: which one has a higher intensity? Which one lasts longer?

Why would atomic absorption spectroscopy be less sensitive to low source temperature, assuming efficient atomization?

1-Describe fluorescence polarization spectroscopy.

Describe at least one analytical technique that you could use that is more sensitive than Raman...

Describe at least one analytical technique that you could use that is more sensitive than Raman spectroscopy, FTIR spectroscopy, and energy-dispersive X-ray spectroscopy (EDS) analyses, but that might be destructive in its analysis of the material. Describe the benefits and other limitations of this technique.

a) Consider three common types of phonon spectroscopy, Raman spectroscopy, Brillouin spectroscopy and inelastic neutron scattering....

a) Consider three common types of phonon spectroscopy, Raman spectroscopy, Brillouin spectroscopy and inelastic neutron scattering. Describe the differences between the three techniques in terms of the following variables and comment briefly on the limitations of each technique as a consequence of these differences. i) The phonon wavevector range probed by each technique. ii) The range of energy transfers to be probed by each technique. iii) The momentum (wavenumber) resolution of each technique.

Define and describe four ways in which fluorescence excitation is more sensitive than optical absorption.

1. Why are the thermal detectors slower and less sensitive than the photon detectors? 2. What...

1. Why are the thermal detectors slower and less sensitive than the photon detectors? 2. What are the physical origins of the shot noise and Johnson noise in an optical detector?

Why is Raman spectroscopy so useful for on-line process analysis or in-situ measurements? discuss the importance...

Why is Raman spectroscopy so useful for on-line process analysis or in-situ measurements? discuss the importance or reasons for a traceable relative intensity correction in Raman spec. what advantages does Raman have over IR or UV-Vis?

why does the measurement of fluorescence data require a more intense source of uv/visible spectroscopy? specific....

why does the measurement of fluorescence data require a more intense source of uv/visible spectroscopy? specific. b) what is the typical source for spectofluorometer? c) for the photomuiltiplier transducer what is the mode off operation used signal to noise?

Describe two major reasons why fluorescence spectrophotometry is a very sensitive analytical technique? (hint, one of...

Describe two major reasons why fluorescence spectrophotometry is a very sensitive analytical technique? (hint, one of the reasons involves the equation I = KP0C) If you wish to analyze a molecule using fluorescence spectrophotometry but that molecule does not fluoresce, what can you do? What characteristics of a molecule make it likely to fluoresce?

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