| Applications | 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 | 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) |