Some causes of bending of analytical curves in atomic emission flame spectrometry |
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| Authors: | TJ Vickers LD Remington JD Winefordner |
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| Institution: | Physical Sciences Laboratory, Directorate of Reseaech and Development, U. S. Army Missile Command, Redstone Arsenal, Ala.U.S.A.;Asheville-Biltmore College, Ashiville, N.C.U.S.A.;Department of Chemistry, University of Florida, Gainesville, Fla.U.S.A. |
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| Abstract: | Factors affecting the shape of analytical curves in atomic emission flame spectrometry are discussed. Equations are presented by which the effect on the analytical curve of self-absorption, ionization, compound formation, variation in solution flow rate and atomization efficiency, entrance optics, and multiple spectral lines can be considered quantitatively. Theoretical and experimental curves are compared for Na introduced as aqueous NaCI solution into H2/air, H2/O2, and C2H2/O2 flames. The portion dealing with the effect of ionization, compound formation, and variation in solution flow rate and atomization efficiency on the atomic concentration in the flame applies as well to atomic absorption and atomic fluorescence flame spectrometry. |
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