Trace Sciences International

Nitrogen Isotopes

Nominal Mass
Accurate Mass
% Natural Abundance
Chemical Form
Enrichment Available %

14 N

14.003074002

99.634 (7)

N/A

N/A

15 N

15.00010897

0.366 (7)

N/A

N/A

Nitrogen Isotopes N-14 and N-15 are both used in various applications. N-15 is used for the production of the radioisotope O-15 which is used in PET. N-15 is also used to study the uptake of Nitrogen in plants and the metabolism of proteins in the human body. N-14 is used for the production of the PET radioisotope C-11. It can also be used for the production of the PET radioisotopes N-13 and O-15.