Which of the following must be done to improve sensitivity?(a) Frequency sweep mode must be preferred(b) Field sweep mode must be preferred(c) Single channel excitation must be preferred(d) Multichannel excitation must be preferredThis question was addressed to me during an online exam.I'm obligated to ask this question of Fourier Transform NMR Spectroscopy in section Nuclear Magnetic Resonance Spectrometer of Analytical Instrumentation

Which of the following must be done to improve sensitivity?(a) Frequen

1.	Which of the following must be done to improve sensitivity?(a) Frequency sweep mode must be preferred(b) Field sweep mode must be preferred(c) Single channel excitation must be preferred(d) Multichannel excitation must be preferredThis question was addressed to me during an online exam.I'm obligated to ask this question of Fourier Transform NMR Spectroscopy in section Nuclear Magnetic Resonance Spectrometer of Analytical Instrumentation
Answer» The CORRECT OPTION is (d) Multichannel excitation must be preferred The best explanation: Sweep techniques have LESS SENSITIVITY. To IMPROVE sensitivity, multichannel excitation must be preferred.

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