Origin and genesis of dissolved organic matter : a study by Py-GC/MS-IRMS / von Oliver Kracht

Dissolved organic matter (DOM) is influenced by the diversity of potential sources and processes which results in a heterogeneous mixture with a characteristic organic chemical signature for individual aquatic ecosystems. Reference samples (DFG-Special Research Program ROSIG) from natural systems such as a bog lake, groundwater and soil percolate but also from anthropogenically influenced systems like a brown coal processing waste water reservoir and a waste water treatment plant were taken to identify common characteristics and differences with respect to the origin and genesis of the DOM. This was achieved by a new analytical approach where fragments of the DOM resulting from thermal degradation (Curie-point pyrolysis at 773 K) were chromatographically separated, identified, and analyzed for their isotopic content (Py-GC/MS-IRMS). The applicability of the analytical method was manifested and additionally used for a comparison of the DOM from a bog lake with a set of samples from different depths of the surrounding moss vegetation.

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Person: Kracht, Oliver [Author]
Corporate Author: Friedrich-Schiller-Universität Jena [Degree granting institution]
Format: Book
Language(s):English
Publication:Jena, 2001
Printing place:Jena
Dissertation Note:Jena, Univ., Diss., 2001
Subjects:Gelöster organischer Stoff > Oberflächengewässer > Aquatisches Ökosystem > Isotopentechnik > Pyrolyse
Type of content:Hochschulschrift
Related resources:Erscheint auch als Online-Ausgabe: Origin and genesis of dissolved organic matter
Physical description:Getr. Zählung : Ill., graph. Darst. ; 29 cm
Basic Classification: 43.12 Umweltchemie