1. Principle
Glow Discharge Optical Emission Spectrometry involves the sputtering of the sample to be analyzed, which is placed in a source operating on the principle of a Cathode-Ray Tube (CRT).
The energy used for sputtering material atoms is the kinetic energy of electrically charged or non-charged particles (ions, electrons, atoms, etc.). Because it does not involve material volatilization, unlike other excitation sources, sputtering of the sample is compatible with the depth resolution required for surface analysis.
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Principle
Definition of a surface analysis
Bibliography
Event
"GD day", international LDS conference, every two years (even-numbered years)
Standards and norms
- ISO Surface chemical analysis – Glow discharge optical emission spectrometry (GD-OES) – Introduction to use. - ISO 14707 -
- ISO Surface chemical analysis – Analysis of zinc and/or aluminium based metallic coatings by glow-discharge optical-emission spectrometry. - ISO 16962 -
Patents
Glow discharge spectrometric measurement of an organic or polymeric solid sample. EP 24434275A1.
Device example
Features of the Horiba Jobin-Yvon GD-Profiler 2 spectrometer
The device is built around a 47-channel simultaneous polychromator with a 2,400 tr/mm double-order concave holographic grating, 0.5 m focal length and 18 to 25 pm resolution in the 110 to 600 nm spectral range. In the UV, the elements measured are H (and D, deuterium, an isotope of H), O, C, N, Cl, Br, I.
The optical...
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