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The use of a demountable hollow cathode discharge atomizer in Doppler-free polarization spectroscopy is described for hyperfine structure analysis at trace analyte concentrations/sizes using a continuous-wave ring dye laser. Using a low-pressure demountable plasma cell in laser polarization
spectroscopy yields several advantages. In addition to cancellation of Doppler broadening, Lorentzian-broadening is minimized due to low-pressure atomization in the cathode discharge cell. This in turn increases spectral resolution enough to allow isotope ratio and hyperfine structure analysis.
In addition, a demountable hollow cathode cell as atomizer offers convenient and efficient small-sample (10 ng) introduction in both liquid or solid form.
Department of Chemistry, San Diego State University, San Diego, California 92182
Publication date: December 1, 1990
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The Society publishes the internationally recognized, peer reviewed journal, Applied Spectroscopy, which is available both in print and online. Subscriptions are included with membership or can be purchased by institutional or corporate organizations. Abstracts may be viewed free of charge. Previously published as Bulletin (Society for Applied Spectroscopy)