Sodium
Doublet Separations
- Na 2p: 0.14 eV
The Energies Listed are Binding Energies!
- Na 1s: 1070 eV
- Na 2s: 63 eV
- Na 2p: 31 eV
The Energies Listed are Binding Energies!
Sb is primarily analysed via the 3d orbital
- Ti MNN (Al source) (1070 eV)
- I 3s (1072 eV)
Energies listed are Kinetic Energies!
Na KLL: ~ 980 eV
The Energies Listed are Binding Energies!
| Species | Binding energy / eV | Charge Ref | Ref |
| Na | 1071 – 1071.5 |
Sodium is a fairly common contaminant if correct sample handling is not followed (e.g. wearing of gloves).
Na 1s peaks do not exhibit large shifts in binding energy, owing to the reactivity and high ionicity of sodium – which readily forms Na+ species which do not have a large difference in chemical shifts.
The Auger parameter may be of more use if one wishes to discriminate between sodium environments.
While not necessarily pertaining to the analysis of the Na 1s region itself, which is fairly trivial, care should be taken when analysing the O 1s region of a material of significant Na content. There exists a secondary Na KLL Auger peak which sits on the high BE side of the O 1s emission, and may easily be mistaken for an oxygen signal.
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