Which of the following is the disadvantage of conventional mode of spectrometer or continuous-wave NMR spectrometer?
A. They are unstable
B. Maintenance is difficult
C. High operating cost
D. Excitation is inefficient
Answer:D
Which of the following is the disadvantage of conventional mode of spectrometer or continuous-wave NMR spectrometer?
A. They are unstable B. Maintenance is difficult C. High operating cost D. Excitation is inefficient
Explanation: The disadvantage of conventional mode of spectrometer or continuous-wave NMR spectrometer is that the excitation is inefficient. Only a narrow band of frequencies are contributing to the signal at a time.