Abstract
X-ray fluorescence spectroscopy (XRS) has been an established research tool for at least seventy-five years for the elemental analysis of condensed phases. Because of recent advances in materials development for the transmission and collection of soft x-rays ({lambda} > 10 {Angstrom}), XRS offers new advantages in the study of fossil fuels and their processed products. Wavelength dispersive x-ray fluorescence spectroscopy offers the added advantages of a very low background and excellent peak length/width ratio. Taken together, these features allow WDXRS to be used for the detection of elements in condensed phases at the parts per million abundance level, and in some cases significantly lower. Results are presented from WDXRS and x-ray diffraction of bituminous coal samples and activated carbons produced from them.
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