FT IR Spectroscopy Why is it advantageous to record many FID signals from the same sample and then add them together? To increase sensitivity None of these To ensure that all target nuclei in the sample have been excited To remove inaccuracies caused by fluctuations in the applied magnetic field To increase sensitivity None of these To ensure that all target nuclei in the sample have been excited To remove inaccuracies caused by fluctuations in the applied magnetic field ANSWER DOWNLOAD EXAMIANS APP
FT IR Spectroscopy Cytochrome C has an isoelectric pH of 10.05 7.5 11.05 8.5 10.05 7.5 11.05 8.5 ANSWER DOWNLOAD EXAMIANS APP
FT IR Spectroscopy Which of the following is the basis of first dimension of separation for two-dimensional electrophoresis? Folding Molecular mass Isoelectric point Solubility Folding Molecular mass Isoelectric point Solubility ANSWER DOWNLOAD EXAMIANS APP
FT IR Spectroscopy How many possible orientations do spin 1/2 nuclei have when they are located in an applied magnetic field? 3 6 2 4 3 6 2 4 ANSWER DOWNLOAD EXAMIANS APP
FT IR Spectroscopy When radiation energy is absorbed by a spin 1/2 nucleus in a magnetic field, what happens? None of these The nucleus spins faster The angle of precession flips so that the magnetic moment of the nucleus opposes the applied field The processional frequency of the nucleus increases None of these The nucleus spins faster The angle of precession flips so that the magnetic moment of the nucleus opposes the applied field The processional frequency of the nucleus increases 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 - spin - spin relaxation Spin - lattice relaxation Spin - spin relaxation None of these Spin - spin - spin relaxation Spin - lattice relaxation Spin - spin relaxation None of these ANSWER DOWNLOAD EXAMIANS APP
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