[Translate to English:] CO2 bubbling

GEOMAR  Research  Marine Biogeochemistry  Marine Geosystems  Benthic Biogeochemistry  gas analyses

The Benthic Biogeochemistry Group is operating Gas Chromatographs (GC) and Mass Spectrometers (MS) to determine free and dissolved gases at the seafloor:

Shimadzu GC2014
ThermoTrace GC

Shimadzu 2014 gas chromatograph with autosampler for headspace-gas analyses
i.e. headspace gases (N2/O2, methane-propane, CO2, H2S) released from sediment and water samples;
detector: FID, TCD

Thermo Trace gas chromatograph for hydrocarbon (C1-C6) gas analyses of headspace;
detector: FID
MAT253
Shimadzu GCMS-2010QP

ThermoFinnigan "MAT253" mass spectrometer inline with ThermoTrace gas chromatograph and combustion oven; sample vials of 10-100 ml volume can be used with attached autosampler;
13C/12C-analyses of methane-propane and CO2 are conducted for headspace gases of water and sediment samples

Shimadzu GCMS with quadrupole-detector for measuring productes from solid phase thermal desorption and pyrolysis (e.g. organic compounds released from organic matter or plastic)
RD2
Marine Biogeochemistry
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