SEPARATION OF SULFUR-CONTAINING CHEMICAL WARFARE RELATED-COMPOUNDS INAQUEOUS SAMPLES BY MICELLAR ELECTROKINETIC CHROMATOGRAPHY

A method is described in which micellar electrokinetic chromatography (MEKC) is used to separate thiodiglycol, 2,2'-sulfinyldiethanol, 1,4-d ithiane, 1,4-thioxane, O-isobutyl methylphosphonothioic acid and O-eth yl methylphosphonothioic acid in aqueous samples. Detection limits ran ge from 1 to 10 mu g/ml and the calibration curves are linear over two orders of magnitude. The compounds are separated in under 10 min. The method fulfills our requirements for a rapid, on-site screening techn ique for these compounds.