Hierarchy classification:

1. top of the aat hierarchies
2. Activities Facet
3. Processes and Techniques (hierarchy name)
4. [processes and techniques by specific type]
5. analysis and testing techniques
6. spectroscopy
7. emission spectroscopy
8. optical emission spectroscopy

Anotations

Scope note:

Optical emission spectral analysis technique in which excitation employs glow discharge, a plasma created by passing an electric current between metal electrodes in a tube containing a gas. In GD-OES a sample located in the cathode is bombarded by a glow discharge lamp. Sputtered neutral atoms excited in the plasma give off characteristic light in deexcitation which is collected by a spectrophotometer.