Table . Linker/Zn analysis results for our approach (NMR+TGA), and the TGA-based approaches of Shearer et al. and Abánades Lázaro (AL). For the latter we report calculated values without (-), and with charge compensation taken into account (OH-and O 2-). The chosen values for the remaining mass of the dehydrated MOF are also given. Turning to qNMR and without considering any information contained in the TGA curve, the simplest approach to estimate the stoichiometry is to assume that the dissolved sample was stoichiometrically perfect and calculate the difference of the observed versus the expected linker mass. Note that if there is a difference, this initial assumption is already proven to be wrong. This rough approach resulted in a stoichiometric ratio of 1.93 for both MAF-6 and ZIF-8. Due to the strong assumptions required when relying only on qNMR when determining the stoichiometry, this is not recommended. One could of course come up with different schemes to improve this result by e.g. dehydrating the sample before analysis or taking into account the mass loss by dehydration from TGA, but we believe these approaches are less robust than the method proposed here.