Capillary electrophoresis method for the analysis of inorganic anions, organic acids, amino acids, nucleotides, carbohydrates and other anionic compounds

A previously developed capillary zone electrophoresis (CZE) method with ind irect UV detection for the simultaneous determination of inorganic and orga nic anions, amino acids and carbohydrates using 20 mm 2,6-pyridinedicarboxy lic acid (PDC) as the background electrolyte was extended to allow determin ation of 206 anions including those above - mentioned and physiological ami no acids, nucleotides, aromatic acids, haloacetic acids, alcohols, phosphor ylated saccharides, oxyhalides, metal oxoacids, metal-ethylenediaminetetraa cetic acid (EDTA) complexes, forensic anions, Good's buffers and herbicides . Every compound could be analyzed and their electrophoretic mobility deter mined simply by selecting detection wavelength. This method is simple and u niversal for anion analysis, and could be readily applied to the simultaneo us determination of anionic compounds. In this work, it was used to identif y and quantify important anions in sea urchin and sake.