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Atomic spectrometry update. X-ray fluorescence spectrometry

“…These models were based on a description of the excitation spectrum by using the fluorescence emission from the appropriate pure element targets, and particular advantages were reported in applications where the excitation spectrum did not possess any discontinuities (absorption edges). Kitov 51 investigated the reduction in systematic errors that can be achieved in the fundamental parameters method by using a small number of reference samples. The Rietveld refinement is widely used in the analysis of XRD spectra, but Carreras et al 52 extended the application of this approach to XRF, based on minimising differences between an experimental spectrum and a function designed to account for characteristic peaks, background spectrum and detector artefacts.…”

Analytical studies of the Alexandrovo Thracian tomb wall paintings

“…However, a single analytical technique cannot provide complete information about the materials and techniques used in the artwork and usually complementary methods of examination and analysis have to be carried out in parallel. http The ancient Thracian tomb at Alexandrovo, Bulgaria (dated to the fourth century BC) [1] is considered as one of the most significant recent discoveries since there are very few sites with mural decoration known from this period. It holds important historical, cultural and scientific information about the religion and life of the ancient Thracians as well as about the construction and painting techniques used back then [2].…”