FT IR SPECTROSCOPY QUIZ

None of these

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

By an intense pressure

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

Isoelectric point

Solubility

Folding

Molecular mass

frequency domain

both (a) and (b)

none of these

time domain

None of these

If the laboratory itself is imagined to be rotated at the Larmor frequency, viewing that individual magnetic moment vectors are fixed in space

That the sample is spun rapidly in the applied field

That the detector rotates around the sample

same terms for the different frequency

different terms for the different frequency

same terms for the same frequency

different terms for the same frequency

None of these

Split a polychromatic beam of radiation into its component wavelengths

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

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

identification of the -NH2 terminal amino acids

All of these

identification of the -COOH terminal amino acids

partial cleavage of the original polypeptide into smaller polypeptides

light microscopy

gel electrophoresis

immunocytochemistry

electron microscopy

10.05

8.5

7.5

11.05

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