Definition
X-ray fluorescence (XRF) analysis is one of the best analytical techniques to perform nondestructive elemental analysis of solid or liquid samples for major and minor components. A sample is excited by bombarding with X-rays causing ejection of inner electrons with subsequent emission of the characteristic (fluorescence) X-rays of the sample. The energy of the fluorescence X-rays is a characteristic of an element, and their intensities are proportional to the number of excited atoms and thus can be used for qualitative and quantitative analysis of the sample.
Introduction
Since discovery of X-rays by Rontgen in 1895, interaction of X-rays with an atom became a target of eager study in physics research, and X-ray spectroscopy was developed (Bertin 1978). At early stage of X-ray spectroscopy development, Moseley (1913) showed that the chemical composition of a substance can be determined with the aid of X-ray spectroscopy. However, introduction of modern X-ray spectrometer...
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References
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Nakai, I. (2018). X-Ray Fluorescence Analysis. In: White, W.M. (eds) Encyclopedia of Geochemistry. Encyclopedia of Earth Sciences Series. Springer, Cham. https://doi.org/10.1007/978-3-319-39312-4_321
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