Near-infrared (NIR) and X-ray fluorescence spectra were recorded for 15 different samples of marmora, from the Mediterranean Basin and of different colours. After appropriate pretreatment (SNV transform + second derivative), the results were subjected to principal component analysis (PCA) treatment with a view to differentiating them. The observed differences among the samples were chemically interpreted by highlighting the NIR wavelengths and minerals, respectively, contributing the most to the PCA models. Moreover, a mid-level data fusion protocol allowed integrating the information from the different techniques and, in particular, to correctly identify (based on the distance in the score space) three test samples of known type. Moreover, it should be stressed that positive results on the differentiation and identification of marmora were obtained using two completely non-invasive, non-destructive and relatively inexpensive techniques, which can also be used in situ.[GRAPHICS]

Marini, F., Tomassetti, M., Piacentini, M., Campanella, L., Flamini, P. (2019). Application of near infrared spectroscopy (NIR), X-ray fluorescence (XRF) and chemometrics to the differentiation of marmora samples from the Mediterranean basin. NATURAL PRODUCT RESEARCH, 33(7), 1006-1014 [10.1080/14786419.2016.1190717].

Application of near infrared spectroscopy (NIR), X-ray fluorescence (XRF) and chemometrics to the differentiation of marmora samples from the Mediterranean basin

Piacentini M.;Campanella L.
;
2019-01-01

Abstract

Near-infrared (NIR) and X-ray fluorescence spectra were recorded for 15 different samples of marmora, from the Mediterranean Basin and of different colours. After appropriate pretreatment (SNV transform + second derivative), the results were subjected to principal component analysis (PCA) treatment with a view to differentiating them. The observed differences among the samples were chemically interpreted by highlighting the NIR wavelengths and minerals, respectively, contributing the most to the PCA models. Moreover, a mid-level data fusion protocol allowed integrating the information from the different techniques and, in particular, to correctly identify (based on the distance in the score space) three test samples of known type. Moreover, it should be stressed that positive results on the differentiation and identification of marmora were obtained using two completely non-invasive, non-destructive and relatively inexpensive techniques, which can also be used in situ.[GRAPHICS]
2019
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore BIO/06 - ANATOMIA COMPARATA E CITOLOGIA
English
Con Impact Factor ISI
; X-ray fluorescence (XRF); chemometrics; near-infrared spectroscopy (NIR); principal component analysis (PCA); Color; Geologic Sediments; Mediterranean Region; Minerals; Principal Component Analysis; Specimen Handling; Spectrometry, X-Ray Emission; Spectroscopy, Near-Infrared
Marini, F., Tomassetti, M., Piacentini, M., Campanella, L., Flamini, P. (2019). Application of near infrared spectroscopy (NIR), X-ray fluorescence (XRF) and chemometrics to the differentiation of marmora samples from the Mediterranean basin. NATURAL PRODUCT RESEARCH, 33(7), 1006-1014 [10.1080/14786419.2016.1190717].
Marini, F; Tomassetti, M; Piacentini, M; Campanella, L; Flamini, P
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/233955
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