ABSTRACT

Capillary electrochromatography (CEC), which combines the features of capillary zone electrophoresis (CZE) and high-performance liquid chromatography (HPLC), is a powerful separation technique with high effi ciency, high resolution, and low consumption of mobile phase and sample [1-5]. The capillary columns for CEC, packed with several particles originally used in HPLC, are now commercially available from some manufacturers, however, these columns are still expensive and sometimes awkward to use.