Simultaneous Determination of Inorganic Anions and Organic Acids by Capillary Electrophoresis

Authors : Nevin ÖZTEKİN, F Bedia ERİM

Pages : 145-150

View : 15 | Download : 11

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :A rapid, easy, and reproducible method for the simultaneous determination of inorganic anions and organic acids is reported. The method is based on the separation of anions in a capillary coated with a cationic polymer, polyethyleneimine insert ignore into journalissuearticles values(PEI);. Four inorganic anions insert ignore into journalissuearticles values(chloride, sulfate, iodate and phosphate); and eight organic acids insert ignore into journalissuearticles values(oxalate, tartarate, malate, succinate, citrate, acetate, lactate, and propionate); were separated and quantified within 7 min by using 2,6-pyridinedicarboxylic acid insert ignore into journalissuearticles values(PDC); as the background electrolyte. The minimum detection limits are 0.67-2.87 m g/mL for inorganic ions and 0.38-2.84 m g/mL for organic acids. Reproducibilities in migration times insert ignore into journalissuearticles values(RSD%); for both inorganic and organic anions were 0.27-1.05. The method was applied to the analysis of white wine.
Keywords : Turk J Chem, 25, 2001, 145 150 Turk J Chem, vol 25, iss 2