Quantitative X-Ray Fluorescent Analysis Using Fundamental Parameters

Abstract

A monochromatic source of X rays for sample excitation permits the use of pure elemental standards and relatively simple calculations to convert the measured fluorescent intensities to an absolute “basis of weight per unit weight of sample. Only the mass absorption coefficients of the sample for the exciting and the fluorescent radiation need be determined. Besides the direct measurement of these absorption coefficients in the sample, other techniques are considered which require fewer sample manipulations and measurements, These fundamental parameters methods permit quantitative analysis without recourse to the time consuming process of preparing nearly identical standards.