FT IR Spectroscopy
Which of the following is the basis of first dimension of separation for two-dimensional electrophoresis?

Molecular mass
Solubility
Isoelectric point
Folding

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

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

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

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