Comparative investigation on the characteristics of glow discharge plasma using glow discharge mass spectrometry and glow discharge optical emission spectrometry

Kazuaki Wagatsuma, Takashi Saka, Mika Yamaguchi, Kiyotaka Ito

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

In glow discharge mass spectrometry (GDMS) and glow discharge optical emission spectrometry (GDOES), variations in the signal intensities against the discharge parameters: current, voltage, and the pressure of plasma gas, are compared to clarify their excitation/ionization processes responsible to each signal. The behaviors are dependent on the discharge mode, i.e., constant-voltage and constant-pressure conditions. Under the constant-voltage conditions where the gas pressure is varied, the ion intensities in GDMS have a maximum and then decrease at higher discharge currents, while the emission intensities in GDOES monotonically increase along with the discharge current. On the other hand, similar dependence of their signal intensities on the discharge current is observed under the constant-pressure conditions. These results indicate that the transport process of analyte ions produced in the plasma play an important role in determining the ion intensities in GDMS.

Original languageEnglish
Pages (from-to)1359-1362
Number of pages4
JournalJournal of analytical atomic spectrometry
Volume17
Issue number10
DOIs
Publication statusPublished - 2002 Jan 1

ASJC Scopus subject areas

  • Analytical Chemistry
  • Spectroscopy

Fingerprint Dive into the research topics of 'Comparative investigation on the characteristics of glow discharge plasma using glow discharge mass spectrometry and glow discharge optical emission spectrometry'. Together they form a unique fingerprint.

  • Cite this