“…To sum up, MOFs containing Zn, Zr, and trivalent metals in their structures normally present higher water and thermal stability [97,98], which makes them adequate candidates for SPME stationary phases. [62,67,80,81]; MIL-type MOFs, synthesized using 1,4-benzenedicarboxylate ligands and different metal ions, including Cr [68,69,82,83], Fe [84][85][86][87], and Al [66,88]; and MOFs composed of Zn metal centers, including MOF-5 with 1,4-benzenedicarboxylate as ligand [64,[89][90][91][92], and the family of ZIF MOFs containing imidazolate-based ligands [63,70,[93][94][95][96]. The selection of these MOFs over others (particularly considering the vast list of possible MOFs) lies on their easy preparation and inter-batch reproducibility of their preparation, together with the fact that their characterization is thorough.…”