Flow Injection Analysis of Hydrogen Peroxide, Sulfite, Formaldehyde and Hydroxymethanesulfonic Acid in Precipitation Samples

摘要

Hydroxymethanesulfonic acid (HMSA), the reaction product of sulfite and formaldehyde plays an important part in the aqueous phase conversion of sulfite to sulfate. HMSA is fairly stable under acidic conditions and in presence of hydrogen peroxide. Sulfite is unstable under these conditions.