FT IR SPECTROSCOPY QUIZ

By use of a Michelson interferometer

Measurement of peak areas

Fourier transformation

None of the above

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

4

2

3

6

By an intense pulse of radiation which contains a wide range of frequencies

By radio-frequency radiation whose frequency is swept across a predetermined range

None of these

By an intense pressure

none of these

time domain

both (a) and (b)

frequency domain

an antigen specific for the subcellular structure

none of these

bound antibody specific for the subcellular structure

an antibody specific for the subcellular structure

a specimen is fixed and then coated with transition metal

None of these

a specimen is not fixed and then coated with thin layer of a heavy metal

a specimen is fixed and then coated with thin layer of a heavy metal

None of these

That the detector rotates around the sample

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

Solubility

Molecular mass

Isoelectric point

Folding

None of these

Split a polychromatic beam of radiation into its component wavelengths

Modulate the I.R. signal at a lower frequency, so that it can be observed by a detector

Selectively filter certain wavelengths from a beam of I.R. radiation