| Applications | Flavor and fragrance industry: authenticity testing of aromas, essential oils, and flavor compounds; natural vs. synthetic discrimination; geographic origin confirmation; adulteration detection | Sports doping (steroid abuse, testosterone origin), criminal forensics (drugs of abuse, explosives, counterfeits), archaeology (food sourcing, mummified materials), 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) | Stable isotope ecology: marine food web elucidation, animal migration tracking, agriculture crop/soil dynamics, soil mesofauna, biogeochemical processes, paleoecology | Geochemistry, geology, paleoclimatology, hydrology, biogeochemistry: mineral sulfates/sulfides, nitrates, biogenic silicates, carbonates, apatite, soils, sediments, clays, tree rings, wood, organic materials |