Abstract
A gas Chromatographie technique, based on methylation with diazomethane and specific sulfur detection (FDP), is proposed for the on-filter speciation of add aerosol constituents. First results indicate, that apart from sulfuric acid (and/or acid sulfate) the atmospheric aerosol may contain sulfurous acid (and/or acid sulfite) and sulfonic acid. The latter are postulated to be products from the atmospheric oxidation of sulfides, disulfides and mercaptans.
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