Poster

FZJ-2014-04881

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Hair ice

Hofmann, D. (Corresponding Author)FZJ* ; Steffen, B.FZJ* ; Disko, U.FZJ* ; Wagner ; Preuß ; Mätzler

2014

Please use a persistent id in citations: http://hdl.handle.net/2128/9174

Abstract: Hair ice grows on the surface of wet, rotten hardwood at temperatures slightly below 0°C. The attraction of winter-active insects as well as the formation of very thin fibres at the beginning of hair-ice melting is presumably attributed to inherent organics. First analysis of melted, brownish hair-ice liquid confirms a high total organic carbon content in the mg/l range. By coupling of Ultra Performance Liquid Chromatography with mass spectrometry (UPLC-MS) a chromatogram with non-resolved peaks was received. Averaged spectra different retention time show peaks spreading over a mass range 100-650 Da with favored intense, odd-numbered peaks, similar to dissolved organic matter (DOM). In the next step, the desalted/ concentrated sample was measured in an Electrospray Fourier Transform Ion Cyclotron Resonance Mass Spectrometer (ESI-FTICR-MS). The received mass list was converted to correspondent formulae, plotted in a van Krevelen diagram and classified as lignin as main ingredient by comparison with two references.

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Contributing Institute(s):

1. Agrosphäre (IBG-3)
2. Jülich Supercomputing Center (JSC)

Research Program(s):

1. 245 - Chemicals in the Environment (POF2-245) (POF2-245)
2. 255 - Terrestrial Systems: From Observation to Prediction (POF3-255) (POF3-255)
3. 411 - Computational Science and Mathematical Methods (POF2-411) (POF2-411)

Appears in the scientific report 2014

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Database coverage:

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