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| <sub>8</sub>O<sup>15</sup> → <sub>7</sub>N<sup>15</sup> + e<sup>+</sup> + ν | <sub>8</sub>O<sup>15</sup> → <sub>7</sub>N<sup>15</sup> + e<sup>+</sup> + ν | ||
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Revision as of 09:02, 17 January 2008
| General | |
|---|---|
| Symbol | N |
| Names | nitrogen-15, 15N, N-15 |
| Protons (Z) | 7 |
| Neutrons (N) | 8 |
| Nuclide data | |
| Natural abundance | 0.37% |
| Spin | ½ |
| Parent isotopes | O (β) |
| Isotopes of nitrogen Complete table of nuclides | |
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 one half, 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.
8O → 7N + e + ν
| Lighter: Nitrogen-14 |
Nitrogen-15 is an ] of ] |
Heavier: Nitrogen-16 |
| Decay product of: Oxygen-15 |
Decay chain of nitrogen-15 |
Decays to: Stable |
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