Contacts :
Technical managers : Rachel Boscardin et Claude Le Milbeau
Scientific correspondent : Claude Le Milbeau
Brand and model :
Thermo Scientific Trace GC Ultra, coupled to an AS3000 autosampler, a GC ISOLINK (Thermo), a CONFLO IV (Thermo) and a Thermo Scientific Delta V Advantage isotope ratio mass spectrometer.
Principle :
Separation of a lipid fraction by GC, conversion of organic molecules into gases (CO/CO2/H2) and analysis of these gases by isotope ratio mass spectrometry.
Objectives :
Determination of the H (δ2H), C (δ13C) or O (δ18O) isotopic composition of molecular biomarkers.
Samples processed :
lipid extracts, sediments, rocks, plants.
Pretreatments :
Lipid extraction by ASE200, Separation of total lipid extracts into chemical fractions by Aspec GX271.
Results :
Chromatogram and isotopic compositions (δ2H, δ13C and δ18O) of molecular biomarkers