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A Semiautomated Device for Controlled Atmospheres in Optical Emission Spectroscopy

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In connection with the determination of trace heavy metals in animal and plant tissue by optical emission spectroscopy, the need arose for a device that could maintain controlled atmospheres at the analytical gap at steady state conditions during high current dc arc excitation periods in which relatively large amounts of matrix constituents were vaporized. Operational needs required precise and continuous adjustment of electrode position, minimal contamination risk, and suitability for routine use.

Keywords: Controlled atmosphere device; Spectrochemical analysis; Spectrochemical instrumentation

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/000370275774455798

Affiliations: Institute for Environmental Studies, University of Illinois, Urbana, Illinois 61801

Publication date: September 1, 1975

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