A vertical electrochemical detection for capillary electrophoresis was
described. The detector consisted of the home-constructed micromanipu
lator and the electrochemical cell. Tile performance was evaluated hy
tile determinations of dopamine, norepinephrine and epinephrine in the
CEEC system, The lowest detectable concentration was 1.0x10(-7) mol/L
and the relative standard deviation was less than 5% for each of the
compounds.