Analytical pyrolysis in marine environments revisited
By Joeri Kaal
This contribution outlines applications of analytical pyrolysis techniques (APTs) –in particular pyrolysis-gas chromatography-mass spectroscopy (Py-GC-MS) and thermally assisted hydrolysis and methylation (THM-GC-MS)– to marine geochemical research. It is subdivided into two main lines, i.e. the results obtained from (1) sedimentary, particulate and dissolved OM from open water environments (estuaries, seas, oceans), and (2) coastal vegetated habitats such as saltmarsh, mangrove and seagrass ecosystems (Blue Carbon). The main aim is to re-familiarize the marine research community with the possibilities of these infra-utilized techniques for the identification of sources and assessment of degradation/preservation state of macromolecular organic matter.
Featured image: sea surface of the South Atlantic Ocean (near Namibia), from the FUNAMOX 2019 expedition (courtesy of Dr. Peter Kraal, NIOZ).