nitrogen-15
E368992
Nitrogen-15 is a stable, naturally occurring isotope of nitrogen widely used as a tracer in nuclear, chemical, and biological studies.
All labels observed (1)
| Label | Occurrences |
|---|---|
| nitrogen-15 canonical | 1 |
Statements (60)
| Predicate | Object |
|---|---|
| instanceOf |
isotope
ⓘ
nitrogen isotope ⓘ stable isotope ⓘ |
| belongsTo | light stable isotopes ⓘ |
| betaDecay | not observed ⓘ |
| bindingEnergyPerNucleon | ≈7.48 MeV ⓘ |
| contrastWith | nitrogen-14 ⓘ |
| discoveredBy |
Harold Urey
ⓘ
surface form:
H. C. Urey
Hugh S. Taylor ⓘ |
| discoveryYear | 1929 ⓘ |
| element | nitrogen ⓘ |
| enrichedForm | 15N-enriched compounds ⓘ |
| halfLife | stable ⓘ |
| heavierThan | nitrogen-14 ⓘ |
| labelingType | stable isotope labeling ⓘ |
| massNumber | 15 ⓘ |
| naturalAbundance |
0.36%
ⓘ
0.37% ⓘ |
| naturalOccurrence | naturally occurring ⓘ |
| neutronNumber | 8 ⓘ |
| nuclearProperty |
NMR-active nucleus
ⓘ
quadrupoleMoment≈0 ⓘ |
| nuclearSpin | 1/2 ⓘ |
| parity | + ⓘ |
| protonNumber | 7 ⓘ |
| radioactive | false ⓘ |
| relativeAtomicMass | 15.000108898 ⓘ |
| standardAtomicWeightContribution | 15.000108898 ⓘ |
| symbol | 15N ⓘ |
| usedAs | stable isotope tracer ⓘ |
| usedFor |
measuring denitrification
ⓘ
measuring nitrification ⓘ measuring nitrogen fixation ⓘ studying protein turnover ⓘ studying trophic levels ⓘ tracing nitrogen transformations ⓘ |
| usedIn |
15N NMR spectroscopy
ⓘ
NMR spectroscopy ⓘ amino acid metabolism studies ⓘ biological studies ⓘ chemical studies ⓘ ecological studies ⓘ environmental tracing ⓘ fertilizer studies ⓘ food web analysis ⓘ forensic science ⓘ groundwater studies ⓘ isotope dilution analysis ⓘ mass spectrometry ⓘ metabolic flux analysis ⓘ metabolic labeling ⓘ nitrogen cycle studies ⓘ nuclear studies ⓘ paleodietary studies ⓘ plant nutrition studies ⓘ pollution source tracking ⓘ protein labeling ⓘ protein structure determination ⓘ soil nitrogen studies ⓘ stable isotope probing ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.