Nitrogen isotope analysis
Nitrogen and oxygen isotope measurements for nitrate, ammonium and organic nitrogen, supporting nutrient-cycle research and pollution source tracing.
What we measure
- Nitrate in water: δ¹⁵N and δ¹⁸O
- Nitrate triple oxygen isotopes: δ¹⁷O and Δ¹⁷O interpretation
- Ammonium in water: δ¹⁵N
- Organic nitrogen in soils, sediments and plant material: δ¹⁵N
Analytical platforms
EA-IRMS for solid organic nitrogen; sample preparation and gas introduction coupled to Delta V Plus or MAT 253 Plus for dissolved nitrogen species.
Research applications
Nitrate source apportionment, atmospheric nitrate contributions, nitrogen cycling and fertilizer-use studies. Nitrogen isotope values are reported relative to AIR.
Explore our applications
Talk to our laboratory
Analytical services, quotations and technical support.