Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/73035
Type: Artigo de periódico
Title: Use of X-ray scattering for studies with organic compounds: a case study using paints
Author: Verbi, FM
Pereira-Filho, ER
Bueno, MIMS
Abstract: This paper presents an unconventional way of detecting organic modifications in paints employing X-ray Spectroscopy (XRS) and Principal Component Analysis (PCA). For this purpose, three different paints (latex, corrective fluid and varnish) were applied onto wood substrates and then treated with infrared radiation and solar light at room temperature. X-ray fluorescence spectra were obtained using an Rh tube-EDXRF system, and PCA analysis was performed using the spectral region between 18 and 24 keV. The scores plots showed a clear paint classification and separation according to treatment. This separation was promoted by Compton and Rayleigh scatterings. This study opens up new possibilities for analysing different materials, and it presents a new field for XRS.
Subject: X-ray scattering
X-ray spectroscopy
chemometrics
paints
Country: Austria
Editor: Springer Wien
Rights: fechado
Identifier DOI: 10.1007/s00604-005-0352-5
Date Issue: 2005
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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