Record details

    Continuous monitoring of the oxidation of algal- and humic-type kerogen in a heated FTIR flow cell
Statement of responsibility
    Zdeněk Sobalík, Jiří Čejka, Bohdan Kříbek
    Čejka, Jiří
    Kříbek, Bohdan, 1946-
    Sobalík, Zdeněk
Source title - serial
    Organic geochemistry
    Vol. 28, no. 11
    p. 767-772
    5 diagr., 1 tab., 19 bibl.
    Anglické resumé
    Zkr. název ser.: Org. Geochem.
Subject group
    organická substance
    sokolovská pánev
    spektrometrie IR
    studie experimentální
Geographical name
Abstract (in english)
   Changes in the IR spectra of algal- and humic-type kerogens was studied during experimental oxidation of self-supported rock pellets in a mixed nitrogen/oxygen (1:1) stream over a period of 10 h at a temperature of 190°C. This new method has the advantage that it enables the study of organic materials, with high ash contents, to be made during a short oxidation period. It was found that in the oxidation of algal-type kerogen, three times more alkyl species were consumed to produce the same integral intensity of the oxygen-containing species compared with humic-type kerogen. A detailed analyses of the complex overlapping 1500-1900 cm-1 bands of the IR spectra, using Fourier self-deconvolution and/or second derivative mode and separation of the individual bands, has shown a prefential increase in the number of phenyl ester groups compared with aryl-alkyl ketone and ester groups with increasing time of oxidation both types of kerogen
    Česká geologická služba
Contributor code
    ČGS (UNM)
Source format
Entered date
    28. 3. 2008
Import date
    8. 8. 2012