Artículos de revistas
Energy Dispersive X-ray Fluorescence Profile Of Some Brazilian Postage Stamps
Registro en:
Journal Of The Brazilian Chemical Society. Soc Brasileira Quimica, v. 27, p. 1305 - 1310, 2016.
0103-5053
1678-4790
WOS:000383101000020
10.5935/0103-5053.20160029
Autor
Schwab
Nicolas V.; Da-Col
Jose Augusto; Meyer
Peter; Bueno
Maria I. M. S.; Eberlin
Marcos N.
Institución
Resumen
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) 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. 27 7 1305 1310 CAPES FAPESP foundation Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)