Determination of Pb(II), Cu(II) and Fe(III) with Capillary Electrophoresis Using Ethylenediaminetetraacetic Acid as a Complexing Agent and Vancomycin as a Complex Selector

摘要: The simultaneous determination of metal ions using ethylenediaminetetraacetic acid (EDTA) as a complexing agent and vancomycin complex selector was successfully studied by capillary electrophoresis with the U-shaped cell. partial filling method (counter current mode) used in order to gain selectivity separation, also increase detection sensitivity. effect concentration on separation behavior free EDTA products, stability metal-EDTA products were considered. Under optimal condition, reproducibilities (RSD) migration time peak area less than 3.39% 9.61%, respectively. With high sensitivity method, Pb(II), Cu(II) Fe(III) tap water determined, recoveries 99 - 105%. concentrations these found did not exceed maximum allowed regulated U.S. Environmental Protection Agency.