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Evaluation of Soft and Hard Scattered X-Rays as an Internal Standard for Light Element Analysis

  • David L. Taylor (a1) and George Andermann (a1)

Abstract

In the research described, the use of scattered x-rays has been successfully applied as an internal standard for the analysis of calcium in aqueous specimens containing a wide range of matrix components. In addition to the demonstration of the utility of scattered x-rays for light element analysis, some comments are offered on the fundamental aspects of this technique, since to date the method has not been explained thoroughly. The present research represents a continued effort to determine the fundamental importance of various parameters intrinsic to any collection of atoms undergoing scattering, such as the Rayleigh-Compton ratio, the scattering angle, the wave length utilized, and the presence or absence of discontinuities in the matrix absorption coefficient. It has been concluded that large values of the scattering angle coupled with short wavelength tend to yield improved internal compensation. The results also indicate that for light matrices the Compton component of the scattered continuum is of particular importance in achieving good internal standardization for matrix effects.

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Evaluation of Soft and Hard Scattered X-Rays as an Internal Standard for Light Element Analysis

  • David L. Taylor (a1) and George Andermann (a1)

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