Simultaneous Determination of Iron(II) and Iron(III) by Micellar Electrokinetic Chromatography Using an Off-line Selective Complexing Reaction

Abstract

A simultaneous determination with UV detection/capillary electrophoresis for Fe(II) and Fe(III) was achieved using a sulfonated bathophenantholine and desfferioxamine B. When the electrophoretic buffer was 60 mmol l^-1 SDS, 10 mmol l^-1 acetic acid (pH 4.0) and 10 mmol l^-1 ascorbic acid and at -10 kV, the iron(II) and iron(III) could not only be completely separated, but also be sensitively determined.