Capillary electrophoresis i.k.
higher concentrations of the modifier or when used modifiers with greater hydrophobicity,
shifted toward larger times of migration.
Separation of inorganic cations can be carried out naturally, without adding EOF
modifiers. In this case, indirect UV detection is also the most common type of detection and
as working electrolytes are used aromatic amines in protonated form as having absorption in
ultraviolet light. It is often difficult to achieve separation since many inorganic cations have
very similar electrophoretic mobility. The selectivity of separation can be optimized by the
addition to the working electrolyte sequestrants, from weak to moderately strong, which
change the effective charge of the ions.
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