Nitrogen-15

Nitrogen-15

Infobox isotope

alternate_names =
symbol =N
mass_number =15
mass =
num_neutrons =8
num_protons =7
abundance = 0.37%
halflife =
error_halflife = googlearfglakdfjg
text_color =


decay_product =
decay_symbol =
decay_mass =
decay_mode1 =
decay_energy1 =
decay_mode2 =
decay_energy2 =
decay_mode3 =
decay_energy3 =
decay_mode4 =
decay_energy4 =
parent =Oxygen-15
parent_symbol =O
parent_mass =15
parent_decay =beta
parent2 =
parent2_symbol =
parent2_mass =
parent2_decay =
spin = ½
excess_energy =
error1 =
binding_energy =
error2 =

Nitrogen-15 is a stable, non-radioactive isotope of nitrogen. It is often used in agricultural and medical research. Nitrogen-15 is frequently used in nuclear magnetic resonance spectroscopy (NMR), because unlike the more abundant nitrogen-14, it has a nuclear spin of ½, which simplifies observation by NMR. Proteins can be isotopical labelled by cultivating them in a medium containing only nitrogen-15. In addition, nitrogen-15 is used to label proteins in quantitative proteomics (e.g. SILAC).

It is a product of oxygen-15 beta decay in stars.


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