Finally, several other techniques are used to obtain information on the MOF composition. Extended X-ray absorption fine structure (EXAFS) and inductively coupled plasma (ICP) techniques are commonly used to characterize the metal nodes as well as metal-containing guests or linkers. Similarly energy dispersive X-ray analysis (EDX), often available in tandem with electron microscopy, can yield information concerning the elemental composition. For the organic content, CHN elemental analysis is sometimes used. Focussing more on the characterization of defects, positron annihilation lifetime spectroscopy (PALS) can be used as an alternative to physisorption to investigate the pore size and distribution. A more direct approach partially complementary to the TGA and NMR strategies discussed before is given by Klet et al., who performed potentiometric acid-base titrations of UiO-66 and other zirconium MOFs in aqueous medium to determine and differentiate between the number of terminal M-μ3-OH, M-OH2 and M-OH protons. The method proposed in this work is conceptually very simple and relies on the direct use of both TGA and liquid-state qNMR data of the same sample. Briefly, qNMR is used to determine the organic linker content, while from TGA the residue (i.e. high temperature plateau) is used to calculate the metal content, assuming it only contains metal oxide. It is crucial that the sample used for both methods is the same (e.g. no change in water content, homogeneous sampling). In what follows we will give the very simple equations, all the practical details and three examples where we analyse TGA and NMR data separately and with the proposed combined method to demonstrate the differences.