Frans_M_Everaerts_Isotachophoresis_378342.pdf

370
1,
\
t
C
SEPARATIONS IN NON-AQUEOUS SYSTEMS
Fig.16.6. Isotachopherogram of the separation of some cations in the operational system listed in
Table 16.5. 1 = H+; 2 = (CH,),N+; 3 = (C,H,),N+; 4 = NH:; 5 = K’; 6 = Na'; 7 = Ca2+; 8 = Li';
9 = Co"; 10 = MnZ+; 11 = Cu2+; 12 = Cd*+.
for divalent cations. The trivalent cations have such a low effective mobility that they do
not migrate in an appropriate way.
Fig.16.7 shows which cations are simultaneously separated in this system and Fig.16.8
shows the isotachopherogram of the separation of some cations.
The most important metals in blood can easily be separated in this operational system.
Qualitative separations are more difficult because large differences in concentrations exist