The Continuous-Wave CW Instrument

FIGURE 3.11 The basic elements of the classical nuclear magnetic resonance spectrometer. 

FIGURE 3.12 The 60-MHz nuclear magnetic resonance spectrum of phenylacetone (the absorp- 

At a constant field strength, the distinct types of protons in a molecule precess at slightly different frequencies. Rather than changing the frequency of the RF oscillator to allow each of the 

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FIGURE 5.12 The 60-MHz H nuclear magnetic resonance spectrum of phenylacetone (the absorption peak at the far right is caused by the added reference substance TMS). 

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