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

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

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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 nucleus spins faster
None of these
The angle of precession flips so that the magnetic moment of the nucleus opposes the applied field
The processional frequency of the nucleus increases

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FT IR Spectroscopy
In FT-NMR, how are nuclei excited?

By an intense pulse of radiation which contains a wide range of frequencies
None of these
By an intense pressure
By radio-frequency radiation whose frequency is swept across a predetermined range

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