The analysis of dimethylsulfide and dimethylsulfoniopropionate in sea ice:Dry-crushing and melting using stable isotope additions

Sea ice is thought to be an important source of the climate-active gas dimethylsulfide (DMS), since extremely high concentrations of its precursor dimethylsulfoniopropionate (DMSP) have been found associated with high algal biomass. Accurate measurements of DMS and associated compounds in sea ice we...

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Bibliographic Details
Published in:Marine Chemistry
Main Authors: Stefels, Jacqueline, Carnat, Gauthier, Dacey, John W. H., Goossens, Thomas, Elzenga, J. Theo M., Tison, Jean-Louis
Format: Article in Journal/Newspaper
Language:English
Published: 2012
Subjects:
Sea ice
Methodology
Sulfur compounds
DMS
DMSP
Ice algae
Climate
REACTION MASS-SPECTROMETRY
ALGAL PIGMENTS
SOUTHERN-OCEAN
MARINE-ALGAE
WEDDELL SEA
PACK ICE
ROSS SEA
ANTARCTICA
PHYTOPLANKTON
Ross Sea
Southern Ocean
Weddell
Weddell Sea
Antarc*
Antarctica
ice algae
Online Access:https://hdl.handle.net/11370/da3417dd-0080-4219-8610-cc49294ff2f3
https://research.rug.nl/en/publications/da3417dd-0080-4219-8610-cc49294ff2f3
https://doi.org/10.1016/j.marchem.2011.09.007
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Summary:Sea ice is thought to be an important source of the climate-active gas dimethylsulfide (DMS), since extremely high concentrations of its precursor dimethylsulfoniopropionate (DMSP) have been found associated with high algal biomass. Accurate measurements of DMS and associated compounds in sea ice were until now not possible due to difficulties associated with the unavoidable melting process before analysis. Here we present and evaluate two methods to analyze DMS and DMSP in sea-ice cores accurately. The first, describes the dry-crushing method, which has its focus on the volatile compound DMS. A sub-sample of deeply frozen (

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