X-Ray Spectrographic Analysis of Automotive Combustion Deposits Without the Use of Calibration Curves
An X-ray spectrographic technique requiring no calibration curves is used to determine chlorine, bromine, and lead in automotive combustion deposits. Other elements, such as zinc and barium, can probably be determined by the same X-ray technique. The inert dilution method, described by Sherman1 in 1957, is employed. Improvements in sample preparation have been made to make the procedure more reliable. Results are calculated by the use of a formula, which is shown to be valid even though sample and standard have composition differences which cause interelement-effect errors if calibration-curve techniques are used. Adequate agreement is obtained between the inert dilution X-ray method and chemical procedures.
KeywordsNickel Powder Particle Size Effect Mass Absorption Coefficient Adequate Agreement Paint Mixer
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- 1.Sherman, Jacob, “A Theoretical Derivation of the Composition of Mixable Specimens from Fluorescent X-Ray Intensities,” in: W. M. Mueller, G. R. Mallett, and M. J. Fay (eds.), Advances in X-Ray Analysis, Vol. 1, Plenum Press, New York, 1957, p. 231.Google Scholar