Optical emission spectroscopy in which a
glow electric discharge excites atoms at the surface of a sample, which is made the cathode of the discharge.
See also: direct current glow discharge optical emission spectroscopy, radiofrequency glow discharge optical emission spectroscopy
Source:
PAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 720 (https://doi.org/10.1515/pac-2019-0203)