Measurement method using
optical emission spectroscopy in which atomization and excitation occur in a
glow electric discharge sustained by a direct current electric field.
Notes: - Generated argon ions impact with high energy on to the surface of the cathode, which can thus be ablated in a purely mechanical way (cathodic sputtering) or the cathode can be heated to assist evaporation (thermal volatilization).
- DC GD-OES is only applicable for electrically conducting samples.
Source:
PAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 716 (https://doi.org/10.1515/pac-2019-0203)