Total reflection X-ray fluorescence analysis of uranium in the presence of competing elements☆

Atomic spectrometry update – a review of advances in X-ray fluorescence spectrometry and its special applications

“…Instrumental developments included 59 modification of an instrument with a silver anode X-ray tube to excite the L2 shell of U efficiently. The U Lβ1 peak was used to determine U (at ca.…”

Total-reflection X-ray fluorescence determination of thorium and uranium in the presence of interfering elements in solid geological objects of natural and technogenic origin

“…The second way of solving the problem of line overlapping for solids is to employ not the most intensive line of the (K or L) a series, but the less intensive (K or L) b-line for the analysis. 34 However, this approach is far from being universal since scenarios are possible in analytical practice when the analyte concentration is too low to use the b-line or it is overlapped as well even inappropriate anode material can prevent the use of, e.g., the U Lb line. That being said this way of solving the problem of line overlapping works well for elements with high abundances but might not work for actinides in geological objects.…”