Browsing by Author "Albertini, Valerio Rossi"

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    Assessment of Three Spectroscopic Techniques for Rapid Estimation of Calcite in Copper Ore
    (IEEE, 2010) Escarate, P.; Guesalaga Meissner, Andrés; Albertini, Valerio Rossi; Bailo, Daniele
    This paper presents the assessment of three spectroscopic techniques, i.e., Raman spectroscopy (RS), ultraviolet fluorescence (UVF) spectroscopy, and energy-dispersive X-ray diffraction (ED-XRD), for measuring calcite (CaCO3) concentration in copper ore. The results for the three methods are compared in terms of their correlation coefficient R2 and prediction error (root-mean-square error of prediction, RMSEP). These approaches substantially shorten the measurement time with respect to current laboratory procedures from 300 min down to 1,15, and 9 min for RS, ED-XRD, and UVF, respectively, while preserving a good accuracy level (RMSEP <