| Applications | Stable isotope ecology: marine food web elucidation, animal migration tracking, agriculture crop/soil dynamics, soil mesofauna, biogeochemical processes, paleoecology | Food authenticity and origin verification: olive oil, wine, meat, seafood, fruits and vegetables, flavor compounds; detection of adulteration; geographic origin determination | Detection of C3 sugar adulteration of honey (LC-IRMS); detection of C4 adulteration per AOAC 998.12 (EA-IRMS, optional); geographic origin confirmation of honey (optional) | Dissolved nitrate isotope analysis (d15N, d18O) in groundwater, surface water, seawater; atmospheric greenhouse gas analysis (CO2, N2O, CH4); nitrogen cycle research; soil and organic material isotope analysis | Upstream reservoir exploration, well profiling, unconventional resources (shale gas, coal bed methane), crude oil fingerprinting, oil spill characterization, gas source determination |