Abstract
An isomer-specific detection method based on Shpol'skii spectroscopy, a cryogenic high-resolution luminescence technique, has been developed to enable determination of nitrogen-containing in-ring substituted polycyclic aromatic compounds in environmental samples. Using conventional lamp excitation in combination with fluorescence and phosphorescence emission, a number of individual benzo- and dibenzacridines as well as 1-azapyrene have been unambiguously identified and quantitatively determined in river and lake sediment samples collected from selected sites in The Netherlands. The limits of detection observed for the examined aza-PACs are in the 10-100 picogram range.
Original language | English |
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Pages (from-to) | 181 |
Journal | Analytica Chimica Acta |
Volume | 354 |
DOIs | |
Publication status | Published - 1997 |