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THE DETERMINATION OF TRACE ELEMENTS IN TUNGSTEN AND MOLYBDENUM BY ATOMIC ABSORPTION SPECTROPHOTOMETRY.
Summary technical rept. Dec 65-Jun 66,
CINCINNATI UNIV OH
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The determination of trace elements in tungsten and molybdenum by optical emission spectroscopy is complicated by the complex spectra and continuum obtained when those elements are excited. Since the emission spectrum of the sample has no effect in atomic absorption, the technique has proven to be of value for this analysis. As many as 10 trace elements have been determined. Only one element can be determined at a time but the total time for the analysis was reduced by using the digital concentration readout. Both air acetylene and nitrous oxide-acetylene flames were used. A 10 percent solution of the metal is required to obtain 1 to 10 ppm sensitivity metal basis. Author
APPROVED FOR PUBLIC RELEASE