Freeman Research Group
Grads and Postdocs
Visitors and Friends
Our organic labs
In the Deike Building, we have a large lab with 20 linear feet of hood space, and facilities for sample storage, grinding, extraction and compound class separation.
Our isotope mass spectrometers
We have two mass spectrometers for compound-specific isotope analyses. Shown is our charter instrument. She boasts the best sensitivity in the neighborhood!
our bench-top GC/MS is used daily to characterize compounds and screen samples prior to quantitative and isotopic analysis.
The HPLC/MS has an ion-trap analyzer
with soft ionization (
ACPI and EI
). The HPLC separate compounds for isotopic analysis by nano-EA/IRMS.
Automated Solvent Extraction
The ASE is widely used for extracting compounds from all types of sample matrices. We are now developing ASE methods for automated compound class separation.
Our nano-EA/IRMS inlet allows nano molar analyses of solid samples. We use this for pigments, lipids and micro fossils. The IRMS also hosts our GC/pyrolysis inlet for molecular deuterium analyses.