A new instrument has joined LSCE’s organic geochemistry platform.
The project named CGéant (Chromatographie en phase Gazeuse pour l’Etude des Archives Naturelles et anThropiques) aimed at acquiring a GC-FID and a gas generator was co-financed by DIM-PAMIR, RéGEF‘s GEOF instrument-network and LSCE’s GeoTrAc team. GEOF co-financed 30% of the new GC- FID. In a move to reduce the environmental footprint of our activities, we purchased reconditioned equipment. In the same vein, we recommissioned an H2 generator for use as a carrier gas and to power the FID of two instruments: the new GC-FID and a GC-preparative.
The GC-FID was the missing link in LSCE’s organic geochemistry technical platform, enabling us to rapidly detect and quantify lipids from the various archaeological and environmental matrices we study at LSCE. This makes it possible to identify samples requiring additional molecular analysis, such as structural analysis by GC-MS (mass spectrometry), isotopic analysis by GC-IRMS (isotope ratio mass spectrometry) on δ13C and δ2H, and to adapt concentrations to instrument capacity, thus extending the life of consumables. It can also be used to quantify GC-preparative isolation yields when developing new molecules for 14C measurement by AMS (accelerator mass spectrometry).
Contact: emmanuelle.casanova[a]lsce.ipsl.fr