FT IR Spectroscopy
The sequence of amino acids in proteins can be determined by means of

identification of the -NH2 terminal amino acids
partial cleavage of the original polypeptide into smaller polypeptides
identification of the -COOH terminal amino acids
All of these

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FT IR Spectroscopy
What is meant by rotating frame of reference?

That the sample is spun rapidly in the applied field
If the laboratory itself is imagined to be rotated at the Larmor frequency, viewing that individual magnetic moment vectors are fixed in space
None of these
That the detector rotates around the sample

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FT IR Spectroscopy
In scanning electron microscopy

a specimen is fixed and then coated with thin layer of a heavy metal
None of these
a specimen is fixed and then coated with transition metal
a specimen is not fixed and then coated with thin layer of a heavy metal

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

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