Materials with known 15N/14N isotopic composition |
IAEA-N-1 | Ammonium Sulfate | 0.4g | δ15N=0.4‰air N2 |
IAEA-N-2 | Ammonium Sulfate | 0.4g | δ15N=20.3‰air N2 |
IAEA-NO-3 | Potassium Nitrate | 0.5g | δ15N=4.7‰air N2 δ18O=25.6‰VSMOW |
USGS32 | Potassium Nitrate | 0.8g | δ15N=180‰air N2 δ18O=25.7‰VSMOW |
USGS34 | Potassium Nitrate | 0.8g | δ15N=-1.8‰air N2 δ18O=-27.9‰VSMOW |
USGS35 | Sodium Nitrate | 0.5g | δ15N=2.7‰air N2 δ18O=57.5‰VSMOW |
USGS25 | Ammonium Sulfate | 0.5g | δ15N=-30.4‰air N2 |
USGS26 | Ammonium Sulfate | 0.5g | δ15N=53.7‰air N2 |
NSVEC | Nitrogen Gas-N2 | 7ml | δ15N=-2.8‰ |
IAEA-305 | 15N labelled ammonium sulfate | 2*0.1g | δ15N (Vial A)=39.8‰air N2 δ15N (Vial B)=375.3‰air N2 |
IAEA-310 | 15N labelled urea | 2*0.1g | δ15N (Vial A)=47.2‰air N2 δ15N (Vial B)=244.6‰air N2 |
IAEA-311 | N-labelled ammonium sulfate | 0.1g | 15N=2.05Atom% |
USGS64 | glycine | 0.5g | δ13C =-40.81 ‰ δ15N = +1.76 ‰ |
USGS65 | glycine | 0.5g | δ13C =-20.29 ‰ δ15N = +20.68 ‰ |
USGS66 | glycine | 0.5g | δ13C =-0.67 ‰ δ15N = +40.83 ‰ |
USGS73 | L-valine | 0.5g | δ13C =-24.03 ‰ δ15N =-5.21 ‰ |
USGS74 | L-valine | 100mg | δ13C =-9.30 ‰ δ15N = +30.19 ‰ |
USGS75 | L-valine | 100mg | δ13C = +0.49 ‰ δ15N = +61.53 ‰ |