Direct current glow discharge optical emission spectroscopy

{
  "id": "MLC-T-CHM-003253",
  "term": "Direct current glow discharge optical emission spectroscopy",
  "field": "Chemistry",
  "definition": "An atomic emission spectroscopic technique that uses a direct current glow discharge to atomize and excite sample material, typically solid conductive samples. The sample acts as the cathode, and sputtering by energetic ions in the plasma releases atoms that then emit light at characteristic wavelengths. The emitted light is analyzed to determine the elemental composition of the sample.",
  "subject": "Analytical Chemistry",
  "see_also": [
    "glow electric discharge",
    "optical emission spectroscopy"
  ],
  "references": [
    "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)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/direct-current-glow-discharge-optical-emission-spectroscopy/"
}