Post-column photochemical conversion of aromatic amines.
This study presents UV spectral data for 39 arom. amines and 3 nitroarom. compds. and examines the influence on the compds. of short-term irradn. at 254 nm. It also gives some general characteristics of the UV spectra of irradiated and non-irradiated analytes. It was ascertained that nitro or aminonitro compds. are photochem. much more stable than arom. amines without nitro substituents. Other substituents, for example -OH, -COOH, -SO3H, and -CH3, do not increase the photochem. stability. Therefore, the alteration of the UV spectra for the latter compds. can be used as an addnl. criterion for identification; this is shown with wastewater from the site of a former ammunition plant as an example.
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