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Mutual Interference Effects of Certain Group III-A Ions with Calcium in Flame Spectroscopy

  • M. E. Doty
  • W. G. Schrenk
Part of the Developments in Applied Spectroscopy book series (DAIS, volume 3)

Abstract

The reduction in emission intensity of calcium due to the presence of BO3 −3, Al+3, Ga+3 and In+3 in the test solutions has been determined. The reverse effect, i.e., the effect of calcium on emissions of Group III-A elements also has been determined. Sample dilution decreased BO3 −3 suppression but increased Al+3 suppression of calcium radiations. Apparently n-butanol forms a compound with the BO3 −3 ion in the evaporating aerosol droplet. This results in an increase in the band emissions owing to an excited state of the boron oxide in the flame, and effects a release of boron suppression of calcium radiations. The presence of methanol (10 to 50% by volume) and sucrose (1%) in the test solution decreases the effect produced by BO3 −3 but increases the effect of aluminum on calcium radiations. Difference in the degree of suppression of the Ca (I) line and CaO bands due to the presence of BO3 −3 or in the test solutions cannot be accounted for on the basis of an intermediate refractory solid phase. The effects of Ga+3 and In+3 on calcium radiations can best be explained in terms of a gas-phase suppression mechanism. In these studies both H2—O2 and C2H2—O2 fuel systems have been used.

Keywords

Emission Intensity Test Solution Boron Oxide Aerosol Droplet Calcium Emission 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    C.T.J. Alkemade and M.H. Voorhuis, Zur Frage des Phosphor Einflusses auf die Calcium Emission in der Flamme. Z. anal. Chem. 163:91 (1958).CrossRefGoogle Scholar
  2. 2.
    C.A. Baker and F.W.J. Garton, A Study of Interferences in Emission and Absorption Flame Photometry. U.K.A.E.R.E. R 3490.Google Scholar
  3. 3.
    J. A. Dean, Flame Photometry (McGraw-Hill, New York, 1960).Google Scholar
  4. 4.
    J. A. Dean, J.C. Rains, et al. Flame Spectrophotometric Study of Barium. Anal. Chem. 33:1722 (1961).CrossRefGoogle Scholar
  5. 5.
    Joseph I. Dinnin, Use of Releasing Agents in the Flame Photometric Determination of Magnesium and-Barium. U.S.G.S. Prof. Pap. 424-D, 1961.Google Scholar
  6. 6.
    James H. Gibson, William E.L. Grossman, and W.D. Cooke, Excitation Processes in Flame Photometry. Anal. Chem. 35:266 (1963).CrossRefGoogle Scholar

Copyright information

© Chicago Section of the Society for Applied Spectroscopy 1964

Authors and Affiliations

  • M. E. Doty
    • 1
  • W. G. Schrenk
    • 1
  1. 1.Department of ChemistryKansas State UniversityManhattanUSA

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