Machine-translated by Google. Questions are authored in English.
Top

Discussion

What are spinning sidebands?

  • A.The doublet caused by incomplete deuterium decoupling
  • B.Small peaks flanking a strong one at the spin rate
  • C.The broad hump under the baseline of a fast experiment
  • D.The extra lines produced by second order coupling

Answer: B

Spinning sidebands are weak satellites on both sides of an intense peak, separated from it by exactly the rotation rate in hertz. Changing the spin rate moves them, which is the standard way of proving that a suspicious small peak is an artefact rather than an impurity. A rolling baseline comes from other causes, second order effects distort intensities within a multiplet, and deuterium is not decoupled in ordinary work. Recognising artefacts for what they are matters as much as assigning the genuine signals.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.