Emission intensity of strontium and barium in flames of various gas compositions |
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| Authors: | Neil R Andersen David N Hume |
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| Institution: | Woods Hole Oceanographic Institution, Woods Hole, Mass.U.S.A.;Department of Chemistry and Laboratory for Nuclear Science, Massachusetts Institute of technology, Cambridge, Mass.U.S.A. |
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| Abstract: | The emission intensity of strontium at 460.7 mμ and barium at 553.6 mμ has been studied in hydrogen flames burning with varying mixtures of oxygen and nitrogen. With solutions of barium and strontium chloride in water and in various concentrations of EDTA, acetic and hydrochloric acids, it was found that the emission depended significantly on the oxygen: nitrogen ratio in the atomizing gas. Under some conditions, maximum emission intensity is found at compositions intermediate between air and pure oxygen. The emission of barium was found to be decreased significantly by EDTA at high pH under some flame conditions. |
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