Spatially-resolved observation of glow discharge plasma for atomic emission spectrometry

Yoshitaka Zenitani, Kazuaki Wagatsuma

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


An imaging spectrograph equipped with a CCD detector was employed to measure two-dimensional emission images from a glow discharge plasma in atomic emission spectrometry. The emission images at Zn I 334.50 nm for a zinc sample and at Cu I 324.75 nm for a copper sample could be obtained. Their emission intensities were not uniform in the radial direction of the plasma region but became weaker at larger distance from the central zone. The two-dimensional distribution would result from a spatial variation in the excitation efficiency of the plasma and thus provide useful information for understanding the excitation processes occurring in the plasma. 2008

Original languageEnglish
Pages (from-to)555-557
Number of pages3
Journalanalytical sciences
Issue number5
Publication statusPublished - 2008 May
Externally publishedYes

ASJC Scopus subject areas

  • Analytical Chemistry


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