FT IR SPECTROSCOPY QUIZ

Spin - spin - spin relaxation

Spin - spin relaxation

Spin - lattice relaxation

None of these

Fourier transformation

By use of a Michelson interferometer

None of the above

Measurement of peak areas

All of these

partial cleavage of the original polypeptide into smaller polypeptides

identification of the -COOH terminal amino acids

identification of the -NH2 terminal amino acids

none of these

time domain

frequency domain

both (a) and (b)

To increase sensitivity

To ensure that all target nuclei in the sample have been excited

To remove inaccuracies caused by fluctuations in the applied magnetic field

None of these

bound antibody specific for the subcellular structure

an antibody specific for the subcellular structure

an antigen specific for the subcellular structure

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

None of these

The nucleus spins faster

different terms for the different frequency

same terms for the same frequency

different terms for the same frequency

same terms for the different frequency

Molecular mass

Solubility

Folding

Isoelectric point

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

a specimen is fixed and then coated with transition metal

None of these

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