FT IR Spectroscopy The frequency of precession, the transition frequency and the Larmor frequency are different terms for the different frequency same terms for the same frequency same terms for the different frequency different terms for the same frequency different terms for the different frequency same terms for the same frequency same terms for the different frequency different terms for the same frequency ANSWER DOWNLOAD EXAMIANS APP
FT IR Spectroscopy When radiation energy is absorbed by a spin 1/2 nucleus in a magnetic field, what happens? The processional frequency of the nucleus increases The nucleus spins faster The angle of precession flips so that the magnetic moment of the nucleus opposes the applied field None of these The processional frequency of the nucleus increases The nucleus spins faster The angle of precession flips so that the magnetic moment of the nucleus opposes the applied field None of these ANSWER DOWNLOAD EXAMIANS APP
FT IR Spectroscopy What is the name given to the relaxation process due to an interaction between an excited nucleus and the magnetic fields caused by nuclei in molecules moving around in the sample? Spin - lattice relaxation Spin - spin - spin relaxation None of these Spin - spin relaxation Spin - lattice relaxation Spin - spin - spin relaxation None of these Spin - spin relaxation ANSWER DOWNLOAD EXAMIANS APP
FT IR Spectroscopy Negative staining is a technique used in electron microscopy immunocytochemistry gel electrophoresis light microscopy electron microscopy immunocytochemistry gel electrophoresis light microscopy ANSWER DOWNLOAD EXAMIANS APP
FT IR Spectroscopy How do you turn a signal recorded in the time domain into a frequency domain signal? None of the above Measurement of peak areas Fourier transformation By use of a Michelson interferometer None of the above Measurement of peak areas Fourier transformation By use of a Michelson interferometer ANSWER DOWNLOAD EXAMIANS APP
FT IR Spectroscopy Why is it advantageous to record many FID signals from the same sample and then add them together? To remove inaccuracies caused by fluctuations in the applied magnetic field None of these To ensure that all target nuclei in the sample have been excited To increase sensitivity To remove inaccuracies caused by fluctuations in the applied magnetic field None of these To ensure that all target nuclei in the sample have been excited To increase sensitivity ANSWER DOWNLOAD EXAMIANS APP
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