Effect of oxygen addition to an argon glow-discharge plasma source in atomic emission spectrometry

Kazuaki Wagatsuma, Kichinosuke Hirokawa

Research output: Contribution to journalArticlepeer-review

29 Citations (Scopus)

Abstract

Small amounts of oxygen gas greatly change the characteristics of the argon plasma light source in glow-discharge emission spectrometry. The influence of oxygen addition on the sputtering rate and the excitation of the analytes in the argon plasma was investigated by employing argon-oxygen binary mixed gases having well-defined compositions. Strong quenching by oxygen was observed from the intensity of the emission lines originating from the analyte element as well as the gas species. The negative effect caused by oxygen gas in analytical applications with the glow-discharge lamp should be noted.

Original languageEnglish
Pages (from-to)193-200
Number of pages8
JournalAnalytica Chimica Acta
Volume306
Issue number2-3
DOIs
Publication statusPublished - 1995 May 10

Keywords

  • Argon
  • Atomic emission spectrometry
  • Glow-discharge emission spectrometry
  • Mixed gases
  • Oxygen
  • Plasmas

ASJC Scopus subject areas

  • Analytical Chemistry
  • Environmental Chemistry
  • Biochemistry
  • Spectroscopy

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