Stationary and time-resolved fluorescence for humic substances characterization
- Steady-state and time-resolved fluorescence methods were applied to investigate the fluorescence properties of humic substances of different origins. Using standard 2D emission and total luminescence spectra, fluorescence maxima, the width of the fluorescence band and a relative fluorescence quantum efficiency were determined. Different trends for fulvic acids and humic acids were observed indicating differences in the heterogeneity of the sample fractions. The complexity of the fluorescence decay of humic substances is discussed and compared to simple model compounds. The effect of oxidation of humic substances on their fluorescence properties is discussed as well.
| Verfasserangaben: | Michael Uwe KumkeORCiDGND, Fritz Hartmann Frimmel |
|---|---|
| URN: | urn:nbn:de:kobv:517-opus-12353 |
| Schriftenreihe (Bandnummer): | Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe (paper 014) |
| Publikationstyp: | Postprint |
| Sprache: | Englisch |
| Erscheinungsjahr: | 2002 |
| Veröffentlichende Institution: | Universität Potsdam |
| Datum der Freischaltung: | 26.01.2007 |
| Quelle: | Refractory organic substances in the environment / Fritz Hartmann Frimmel et. al. - Wiley-VCH : Weinheim, 2002. - p. 215 - 231. - ISBN 978-3-527-30173-7 |
| Organisationseinheiten: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Chemie |
| DDC-Klassifikation: | 5 Naturwissenschaften und Mathematik / 54 Chemie / 540 Chemie und zugeordnete Wissenschaften |
| Externe Anmerkung: | first published in: Refractory organic substances in the environment / Fritz Hartmann Frimmel et. al. - Wiley-VCH : Weinheim, 2002. - p. 215 - 231. - ISBN 978-3-527-30173-7 (Inhaltsverzeichnis) |
