Potentiometric detection of carboxylic acids and inorganic anions in ion-exclusion chromatography using camphorsulphonic acid as eluent

摘要: Abstract The use of potentiometric detection in ion-exclusion chromatography carboxylic acids (oxalic, citric, tartaric, malic, lactic, succinic and acetic acid) is reported. A comparison the performance characteristics with those obtained by UV absorbance given. treatment electrode response characteristics, based on ionic equilibria bulk solution, presented order to determine mechanism at indicator electrode. results show that Nernstian arises as a result effect solute species concentration Cu(II) generated surface. Experimental data for inorganic anions aliphatic close agreement theoretical response. selectivity detector illustrated reference analysis white wine.