CAPILLARY ELECTROPHORESIS OF INORGANIC ANIONS AND ORGANIC-ACIDS USINGSUPPRESSED CONDUCTIVITY DETECTION - STRATEGIES FOR SELECTIVITY CONTROL

The use of suppressed conductivity as a detection scheme for capillary electrophoresis (CE) is described. A comparison is made between sever al electrolytes for CE with suppressed conductivity detection (CESC) i n terms of efficiency of separation and peak shape. The ability to mod ify electrophoretic mobility and selectivity as a function of temperat ure and electrolyte ionic strength is demonstrated. The separation of a variety of low-molecular-mass organic acids is optimized using the a ddition of metal ions to the separation electrolyte.