The easiest and most accurate method of quantification involves the back-extrapolation of 1D T2* data sets, obtained by simple FID measurement to obtain the time-zero value intensity (figure and). In this case, the decay of pre-milling and ZIF-8 as synthesized both contain a gaussian and an exponential component. In these FID plots, the black line represents the raw data while the red line indicates the fitting. The reactants pre-milling had a signal intensity of 8.32 x 10 4 and the ZIF-8 as synthesized of 8.31 x 10 4 , establishing conservation of hydrogen signal before and after milling. The FID decays reveal clear differences in the lifetimes of the 1 H species present before and after milling.