Authors: Colón, Luis A.¹; Barry, Eugene F.²

Source: Applied Spectroscopy, Volume 45, Issue 8, Pages 1217-1380 (September/October 1991) , pp. 1225-1229(5)

Publisher: Society for Applied Spectroscopy

Abstract:

Results on the characterization of a helium alternating-current plasma (ACP) are presented. Spectroscopic techniques were utilized to obtain diagnostic measurements of the plasma. The characteristics studied include appearance, excitation temperature, ionization and electron temperature, electron number density, and interferences from other concomitants. Sample introduction was achieved with a glass frit nebulizer (GFN). Enhancement of the calcium response was observed while sodium was present in the plasma. Signal depression was noted when calcium and phosphate were simultaneously introduced into the ACP.

Keywords: Alternating-current plasma; Atomic emission spectroscopy; Electron density; Excitation temperature; Ionization temperature; Electron temperature; Helium plasma; Spectroscopic diagnostics

Document Type: Research article

DOI: http://dx.doi.org/10.1366/0003702914335751

Affiliations: 1: Department of Chemistry, University of Lowell, One University Avenue, Lowell, Massachusetts 01854; present address: Department of Chemistry, Stanford University, Stanford, CA 94305-5080 2: Department of Chemistry, University of Lowell, One University Avenue, Lowell, Massachusetts 01854

Publication date: 1991-09-01

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  Previously published as Bulletin (Society for Applied Spectroscopy)
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