Practice Nmr Instrumentation (3.4.2) - Unit 11: Measurement and Data Processing

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9 questions

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6 sample questions

Question 1.
What is the primary function of the superconducting magnet in NMR?
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Think about how magnetism plays a role in detecting signals.
Question 2.
What does the probe contain?
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Consider what holds the sample in place.
3Question 3.
What is the purpose of the gradient coils in NMR?
- A) To create a uniform magnetic field
- B) To allow spatial encoding
- C) To hold the sample
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Think about how we analyze complex molecules.
4Question 4.
True or False: The FID signal is the signal received after the nuclei are relaxed.
- True
- False
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Consider when the signal is recorded.
Question 5.
In an NMR experiment, if the strength of the magnetic field is increased, what is the expected effect on the resolution of the peaks and why?
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Consider how magnetic strength relates to signal differentiation.
Question 6.
Given a signal-to-noise ratio (SNR) of 35 dB in an NMR experiment, convert this ratio into a linear scale.
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Use the decibel conversion formula to find the linear ratio.

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