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Type: research-article
Title: Energy Dispersive X-Ray Fluorescence Profile of Some Brazilian Postage Stamps
Title Alternative: 
Author: Schwab
Nicolas V.; Da-Col
José Augusto; Meyer
Peter; Bueno
Maria I. M. S.; Eberlin
Marcos N.
Abstract: An energy dispersive X-ray fluorescence (EDXRF) analysis has been performed on Brazilian postage stamps to understand the elementary profile present in the paper, colored and postmarked areas, of stamps printed between 1850 and 1922. The EDXRF technique offered a fast, simple and nondestructive chemical analysis providing a profile of each postage stamp that provide a valuable data, such as information about raw materials employed in manufacturing process. Furthermore, we extend the methodology to detect counterfeit samples, since that some rare samples can cost fortunes, which naturally leads to cases of forgery in philately.
Rights: aberto
Identifier DOI: 10.5935/0103-5053.20160029
Date Issue: 2016
Appears in Collections:Unicamp - Artigos e Outros Documentos

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