Even if different plates formation and types of gel (mainly
in terms of hardness and homogeneity) will be obtained with
the different techniques available, it can be anticipated that,
for a given type of gel, silica and formation process, the best
performance will be obtained with highly hydrophilic separators
having the higher possible pore volume, with a maximum
of pores between 1 and 10 m (not larger to avoid dendrite
growth).