Title: plasma gases
Long Title: IUPAC Gold Book - plasma gases
DOI: 10.1351/goldbook.08520
Status: current

Definition
Gas streams used to maintain and stabilize the inductively-coupled plasma. The external stream is the main constituent of the plasma and confines the plasma avoiding melting of the torch walls; the intermediate gas stream keeps the plasma at a given height above the top of the torch and, the central stream carries the aerosol and promotes its injection in the plasma central channel.

Related Term
- inductively-coupled plasma: https://goldbook.iupac.org/terms/view/08488

Source
- PAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 727 (https://doi.org/10.1515/pac-2019-0203)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/08520/html
- json: https://goldbook.iupac.org/terms/view/08520/json
- xml: https://goldbook.iupac.org/terms/view/08520/xml

Citation: Citation: 'plasma gases' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.08520
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Accessed: 2026-06-28T14:41:42+00:00