Method allows determination of mass concentration of total sulfur dioxide (sulfurous acid and its salts, food additives E220–E228) in wine, wine materials, beer and beer products by capillary electrophoresis (CE) using capillary electrophoresis system “CAPEL® -105M”. The mass concentration of total sulfur dioxide is regulated by normative documents to be held within 100– 400 mg/L for different types of wine and wine materials and within 20–50 mg/L for beer products. According to European and Russian regulations it is allowed not to indicate on the labels the presence of sulfur dioxide in beverages if its concentration is less than 10 mg/L.
By Lumex Instruments Group based in Mission, BRITISH COLUMBIA (CANADA).
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