OSA's Digital Library

Applied Spectroscopy

Applied Spectroscopy


  • Vol. 24, Iss. 6 — Nov. 1, 1970
  • pp: 568–572

A Controlled-Atmosphere Plasma Arc for Emission Spectrography of Nonmetal Elements

Raymond J. Heemstra

Applied Spectroscopy, Vol. 24, Issue 6, pp. 568-572 (1970)

View Full Text Article

Acrobat PDF (516 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

  • Export Citation/Save Click for help


To estimate the weight percents of certain nonmetal elements in organic compounds found in petroleum reservoirs, the Bureau of Mines designed and constructed a controlled-atmosphere plasma are which effectively excludes air from the plasma. Selected organic compounds that contained nonmetal elements were mixed with a solvent essentially free of those elements. The weight percents of the nonmetal elements were estimated from the produced diatomic spectral bands; results were reasonably accurate. Analytical working curves were prepared for nitrogen in the range from 15 to 450 μg for 100 mg samples using the analytical carbon–nitrogen band at 3883 Å and the internal standard carbon–carbon band at 3607 Å. Curves also were prepared for hydrogen, sulfur, and oxygen that had limited sensitivity to detection. Another indicated application of this plasma arc is for characterization of high-boiling petroleum fractions in liquid chromatographic effluents. The rates at which diatomic species are produced and destroyed directly influence the intensity of each corresponding band spectrum.

Raymond J. Heemstra, "A Controlled-Atmosphere Plasma Arc for Emission Spectrography of Nonmetal Elements," Appl. Spectrosc. 24, 568-572 (1970)

Sort:  Journal  |  Reset


References are not available for this paper.

Cited By

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited