Glow electric discharge
Term · Chemistry · MLC-T-CHM-004922
A type of plasma sustained by passing a direct current through a gas at low pressure, typically between 0.1 and 10 Torr. It is characterized by a low current density and a relatively high voltage drop between the electrodes, which creates a luminous glow from the de-excitation of atoms and molecules. This discharge serves as an atomization and excitation source in analytical techniques such as glow discharge atomic emission spectroscopy (GD-AES) and glow discharge mass spectrometry (GD-MS).
| Identifier | MLC-T-CHM-004922 |
|---|---|
| Field | Chemistry |
| Subject | Analytical Chemistry |
| Synonyms | glow discharge |
| References | 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) |
| See also | Electric discharge; Atomic emission spectroscopy |
Record as JSON
{
"id": "MLC-T-CHM-004922",
"term": "Glow electric discharge",
"field": "Chemistry",
"definition": "A type of plasma sustained by passing a direct current through a gas at low pressure, typically between 0.1 and 10 Torr. It is characterized by a low current density and a relatively high voltage drop between the electrodes, which creates a luminous glow from the de-excitation of atoms and molecules. This discharge serves as an atomization and excitation source in analytical techniques such as glow discharge atomic emission spectroscopy (GD-AES) and glow discharge mass spectrometry (GD-MS).",
"synonyms": [
"glow discharge"
],
"subject": "Analytical Chemistry",
"see_also": [
"electric discharge",
"atomic emission spectroscopy"
],
"references": [
"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)"
],
"url": "https://mlchart.com/terminology/chemistry/glow-electric-discharge/"
}
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