Figure 3.

Plot of $\delta \Delta R_2^{\text{CPMG}}({\text{s}}^{-1})$ as a function of the population of the minor state, p_B, for exchange rates (k_ex) ranging from 200 to 3,500 s⁻¹, $R_2^{\text{B}}=900{\text{ s}}^{-1}$, and T_relax = 40 ms. Eq. 17 was used for all calculations of $\delta \Delta R_2^{\text{CPMG}}$. The curves are color-coded according to the value of k_ex as indicated in the plot. The inset shows a plot of $\delta \Delta R_2^{\text{CPMG}}$ as a function of k_ex for p_B = 10 % and $R_2^{\text{B}}=900{\text{ s}}^{-1}$.