Abstract
Rare earths in sediments are analyzed by X-ray fluorescence using241Am as an excitation source. The analytical sensitivity lies in the ppm range.
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Lagarde, G., Larcher, J. 241Am-XRF analysis of rare earths in geological samples. Journal of Radioanalytical and Nuclear Chemistry Letters 105, 341–349 (1986). https://doi.org/10.1007/BF02166345
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DOI: https://doi.org/10.1007/BF02166345