FT IR Spectroscopy
In immunofluroscence microscopy, fluroscent compounds are attached to

bound antibody specific for the subcellular structure
none of these
an antibody specific for the subcellular structure
an antigen specific for the subcellular structure

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FT IR Spectroscopy
Why is it advantageous to record many FID signals from the same sample and then add them together?

To ensure that all target nuclei in the sample have been excited
To increase sensitivity
None of these
To remove inaccuracies caused by fluctuations in the applied magnetic field

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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
None of these
The angle of precession flips so that the magnetic moment of the nucleus opposes the applied field

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