Fig. 4.

Percent error in the estimated value of the reaction rate constant k for ³¹P-simulated saturation-transfer experiments of the CK reaction using the standard progressive-saturation method and the FAST method as a function of ω₁ and k. The value of k is calculated using the numerical inversion method, Eqs. (10) and (11) for T_1A = 6 s and M_0A/M_0B = 1.5. Errors are depicted both as contours and by the same gray scale used in Fig. 1.