In an NMR spectrometer operating at ν₀ = 300 MHz, a resonance that has a chemical shift of 2.0 ppm (i.e., $\delta$ 2) occurs at a frequency that is

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The chemical shift is given in ppm (parts per million), which means that a shift of 2.0 ppm at a spectrometer frequency of 300 MHz is 2.0 ppm * 300 MHz = 600 Hz. This indicates the resonance occurs 600 Hz away from the reference signal of TMS (tetramethylsilane), which is the standard reference compound used in NMR spectroscopy.

In an NMR Spectrometer Operating at ν0 = 300 MHz δ\deltaδ

In an NMR Spectrometer Operating at ν₀ = 300 MHz $\delta$