Stable isotopes mass spectrometry

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The Fredy & Nadine Herrmann Institute of Earth Sciences Stable Isotopes Laboratory hosts two main instruments:
 
1.  A Flash Elemental Analyzer (EA) 1112 series coupled to a Delta Plus mass spectrometer (IRMS, Thermo Finnigan, Germany) use for sulfur isotope analysis of balk solid S samples /total sulfur in organic samples (pyrite, sulfate,oil, kerogen, etc.).
 
2.  A Flash Elemental Analyzer (EA) 1112 series coupled to a Delta V mass spectrometer (IRMS, Thermo Finnigan, Germany) in use for carbon and nitrogen isotope analysis of balk solid samples.
 
3. A Gas-chromatograph isotope ratio mass spectrometer (Thermo Finnigan, Trace GC 1310 connected to a Delta V via GC-isolink and Conflu IV) for measuring compound specific hydrogen and carbon isotopes.
 
4. A Picarro water isotope analyzer for water and vapor (δD, δ18O, δ17O). 
 
5. Gas chromatography (GC) and high resolution multi-collector inductively-coupled plasma mass spectrometry (MC-ICP-MS, Neptune Plus, ThermoFischer, Germany) is used for Compound specific (e.g. DMS,  petroleum)  δ34S analysis at the picomole level
 
 
Routine Analysis of the following are olso performed:
  • Clumped isotopes and three oxygen isotopes in carbonate minerals 
  • Dust and soil phosphate δ18O  
  • Organic δ13C and water δ18O
  • Δ17O and δ18O of Oand H2
  • Organic and water δD analysis
 
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(IRMS, Thermo Finnigan, Germany)
 
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Sable isotopes faculty