Diffuse Reflectance Infrared Fourier Tranform Spectroscopy of Soil Bitumens from Sumava Region

Page: 151

V. Machovic * and F. Novak **

* Central Laboratory, Institute of Chemical Technology, Prague; ** Institute of Soil Biology, Academy of Sciences of the Czech Republic, Ceske Budejovice


Bitumens isolated from the individual soil horizons of the cambisol samples in Boubin-north spruce stand (Sumava Mts.) were analysed using diffuse-reflectance IR spectroscopy (DRIFTS). DRIFTS is suitable as a semiquantitative method for the detection of composition changes of soil bitumens with the increasing soil depth. The aromaticity of soil bitumens decreases, aliphatic chains elongate, and ratio of polar fraction decreases with the increasing depth.


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