Ultra-rapid mixing

F. Bordeaus, A.R. Yavari, Ultra rapid heating by spontaneous mixing reactions in metal-metal multilayer composites, J. Mat. Res 5 (8) (1990) 1656. 

HVA and 5HIAA using a 100 ml volumetric, dissolve 9.11 mg of HVA and 9.56 mg of 5HIAA in 80 ml of ultra pure H20. Make up to 100 ml using Milli-Q H20 and sonicate for 1 min. Mix thoroughly and aliquot immediately the solid has dissolved. Aliquots of 0.5 ml should then be transferred into labelled Eppen-dorf tubes, frozen rapidly in liquid nitrogen, and stored at -70°C. 

It is clear that much work remains to be done to extend our understanding to polax surfaces of transition metal oxides in which the cations have partially filled d orbitals. An especially challenging issue is related to mixed valence metal oxides, such as Fe304, in which the cations exist under two oxidation states. In addition, considering the rapid development of ultra-thin film synthesis and characterization, a simultaneous effort should be performed on the theoretical side to settle the conditions of stability of polar films. More generally, on the experimental side, it seems that one of the present bottlenecks is in a quantitative determination of the surface stoichiometry, an information of prominent interest to interpret the presence or absence of reconstruction. 

---