The analysis of sucronic acids produced by the electrocatalytic oxidation of sucrose is described. The main reaction products, 1’-monocarboxylic and 6-monocarboxylic acids of sucrose, were identified by means of gas and liquid chromatography, mass spectrometry, NMR and i.r. spectroscopy, and acid hydrolysis. The quantitative analysis of reaction products other than the sucronic acids was realized by ionic chromatography (Dionex), whereas that of the sucronic acids was carried out using their acid hydrolysis products.