Fig. 9

Example of normalization procedure for MFT curves from, where a represents the shift in time obtained by taking the first derivative of each curve with respect to time, with the entirety of the differentiated curve illustrated in the inset. The next step in the correction, the shift in ΔE₀₀ (y-axis) at 60 s, is illustrated in b. In c, the corrected curves are then superimposable, and d all three corrected curves are fitted to a concatenated power function