Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/326397
Type: Artigo
Title: Forensic Application Of X-ray Fluorescence Spectroscopy For The Discrimination Of Authentic And Counterfeit Revenue Stamps
Forensic application of X-ray fluorescence spectroscopy for the discrimination of authentic and counterfeit revenue stamps
Author: Melendez-Perez, Jose Javier
Correa, Deleon Nascimento
Hernandes, Vinicius Veri
Morais, Damila Rodrigues de
Oliveira, Rodrigo Borges de
Souza, Wanderley de
Santos, Jandyson Machado
Eberlin, Marcos Nogueira
Abstract: Energy-dispersive X-ray fluorescence (ED-XRF) spectroscopy with data treatment via chemometric tools was explored as an analytical protocol to discriminate between authentic and counterfeit revenue stamps. Untreated samples were directly analyzed, and the discrimination was based on the characterization of constituent elements present in the inks and paper. Authentic samples and samples that were suspected of being counterfeit were analyzed at three different areas on their surfaces: the ink-printed area, the non-printed area, and the holographic area. Principal component analysis (PCA) was applied to the data to discriminate between authentic and counterfeit revenue stamps. Major differences in the elemental composition were noted (according to chemometrics and t-test, p < 0.05), and ED-XRF spectroscopy plus PCA protocol is proposed for use by non-specialist operators to screen for counterfeit stamps.
Energy-dispersive X-ray fluorescence (ED-XRF) spectroscopy with data treatment via chemometric tools was explored as an analytical protocol to discriminate between authentic and counterfeit revenue stamps. Untreated samples were directly analyzed, and the
Subject: Forensic Science
Questioned Documents
Energy-dispersive X-ray Fluorescence
Revenue Stamp
Tax Stamp
Ciências forenses
EDXRF
Country: Estados Unidos
Editor: Sage
Citation: Applied Spectroscopy. Sage Publications Inc, v. 70, p. 1910 - 1915, 2016.
Rights: fechado
Fechado
Identifier DOI: 10.1177/0003702816645352
Address: https://journals.sagepub.com/doi/10.1177/0003702816645352
Date Issue: 2016
Appears in Collections:IQ - Artigos e Outros Documentos

Files in This Item:
File SizeFormat 
000388275300013.pdf491.54 kBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.