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Multi-element analysis of geological samples by energy-dispersive X-ray fluorescence



Multi-element analysis of geological samples by energy-dispersive X-ray fluorescence



Analytica Chimica Acta 109(1): 85-95



A rapid multi-element analysis of thick geochemical specimens by energy-dispersive x-ray fluorescence with a secondary target set-up is described. The simple sample preparation consists of pressing the powdered material into pellets. Calibration is based on the use of thin foils of the pure element. Matrix effects are corrected by a simplified fundamental parameter technique. The method has been applied to the analysis of a series of geochemical standard samples. A fair agreement is obtained between the results and the reported data with accuracies typically of 10%. The detection limit reached is about 1 ppm, provided that serious spectral interferences are absent. Samples of widely varying composition may be analyzed.

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Accession: 019486045

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DOI: 10.1016/s0003-2670(01)84230-6


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