• JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
 
  Bookmark and Share
 
 
Disertación de Maestría
DOI
https://doi.org/10.11606/D.3.2013.tde-18082014-104010
Documento
Autor
Nombre completo
Herbert Prince Favero Pinto
Dirección Electrónica
Instituto/Escuela/Facultad
Área de Conocimiento
Fecha de Defensa
Publicación
São Paulo, 2013
Director
Tribunal
Neiva, Augusto Camara (Presidente)
Added, Nemitala
Rizzutto, Marcia de Almeida
Título en portugués
Três estratégias para análise quantitativa ou qualitativa por espectroscopia de fluorescência de raios-X por energia dispersiva.
Palabras clave en portugués
Ara-Lihuen
EDXRF
Fluorescência de Raios-X
PyMCA
Resumen en portugués
Este trabalho apresenta estratégias para análise quantitativa e semiquantitativa por Espectrometria de Fluorescência por Dispersão de Energia de Raios-X (EDXRF) em três situações típicas: a) materiais homogêneos cujos componentes estejam majoritariamente dentro do campo de detecção da técnica (análise quantitativa), b) materiais homogêneos cujos componentes estejam majoritariamente fora do campo de detecção da técnica (análise quantitativa de elementos minoritários detectados) e, c) materiais heterogêneos em camadas sobrepostas cujos componentes de interesse analítico estejam dentro do campo de detecção da técnica (análise semi-quantitativa de elementos detectados). O trabalho descreve os dois espectrômetros utilizados para as medidas, desenvolvidos no laboratório. Para a determinação das áreas dos picos, foi utilizado principalmente o software PyMCA, desenvolvido pelo CERN. Para a determinação de composições, foram utilizados dois softwares de análise quantitativa que utilizam o método dos Parâmetros Fundamentais. O primeiro é o PyMCA, que efetua de forma integrada o ajuste dos picos e a determinação dos teores. O segundo pertence ao pacote Ara-Lihuen, desenvolvido no próprio laboratório, e obtém teores a partir de áreas dos picos. O trabalho apresenta o desenvolvimento de rotinas do Ara-Lihuen que permitem a verificação de etapas intermediárias de cálculo.
Título en inglés
Three strategies for quantitative or qualitative analysis by Energy Dispersive X-ray Fluorescence Spectroscopy.
Palabras clave en inglés
Ara-Lihuen
EDXRF
PyMCA
X-Ray Fluorescence
Resumen en inglés
This work presents the strategies for quantitative and semi quantitative analyses by Energy Dispersive X-Ray Fluorescence (EDXRF) in three typical situations: a) homogeneous materials whose components are mainly within the field of detection of the technique (quantitative analysis), b) homogenous materials whose components are mostly outside the field of detection of the technique (quantitative analysis of low-content detected elements), and c) heterogeneous materials in superposed layers (semi-quantitative analysis of detected elements). The work describes the two spectrometers used for measurement, developed in the laboratory. For the determination of peak areas, it was used mainly PyMCA software developed by CERN. For the determination of compositions, two quantitative Fundamental- Parameters based (FP) softwares were used. The first is PyMCA, that performs simultaneously the fitting of peaks and the determination the contents. The second belongs to the Ara-Lihuen package, developed in the laboratory, and obtains contents from peak areas. The work presents the development of Ara-Lihuen routines that allow verification of intermediate calculation steps.
 
ADVERTENCIA - La consulta de este documento queda condicionada a la aceptación de las siguientes condiciones de uso:
Este documento es únicamente para usos privados enmarcados en actividades de investigación y docencia. No se autoriza su reproducción con finalidades de lucro. Esta reserva de derechos afecta tanto los datos del documento como a sus contenidos. En la utilización o cita de partes del documento es obligado indicar el nombre de la persona autora.
Fecha de Publicación
2014-08-22
 
ADVERTENCIA: El material descrito abajo se refiere a los trabajos derivados de esta tesis o disertación. El contenido de estos documentos es responsabilidad del autor de la tesis o disertación.
  • CAMPOS, P.H.O.V., et al. X-ray Fluorescence and Imaging Analyses of Paintings by the Brazilian Artist Oscar Pereira Da Silva [doi:10.1016/j.radphyschem.2013.05.029]. Radiation Physics and Chemistry (1993) [online], 2013, vol. 1, p. 1.
  • NEIVA, A. C., et al. Analysis of photographs and photo-paintings by energy-dispersive x-ray fluorescence spectroscopy. Radiation Physics and Chemistry (1993), 2013.
  • NEIVA, A. C., Pinto, H P F, and LANDGRAF, F. J. G. Evaluating the presence of titanium in xix-century brazilian steels by energy-dispersive x-ray fluorescence. Radiation Physics and Chemistry (1993), 2013.
  • NEIVA, AUGUSTO CAMARA, et al. Analysis of photographs and photo-paintings by energy-dispersive X-ray fluorescence spectroscopy [doi:10.1016/j.radphyschem.2013.03.028]. Radiation Physics and Chemistry (1993) [online], 2013, vol. 1, p. 1.
  • NEIVA, AUGUSTO CAMARA, PINTO, HERBERT PRINCE FAVERO, and LANDGRAF, FERNANDO JOSÉ GOMES. Evaluating the presence of titanium in XIX-century Brazilian steels by energy-dispersive X-ray fluorescence [doi:10.1016/j.radphyschem.2013.03.015]. Radiation Physics and Chemistry (1993) [online], 2013, vol. 1, p. 1.
  • KAJYIA, E., et al. X ray fluorescence and images analysis of paintings of the Brazilian artist Oscar Pereira da Silva. In 2012 International Symposium on Radiation Physics - ISRP 2012, Rio, 2012. Proceedings of the 2012 International Symposium on Radiation Physics.Rio : International Radiation Physics Society, 2012. Resumo.
  • NEIVA, A. C., et al. Analysis of ceramic pieces of the Instituto Portucale collection by energy-dispersive x-ray fluorescence spectroscopy. In 2012 International Symposium on radiation Physics - ISRP 2012, Rio, 2012. Proceedings of the 2012 International Symposium on Radiation Physics.Rio : International Radiation Physics Society, 2012. Resumo.
  • NEIVA, A. C., et al. Analysis of photographs and photo-paintings by energy-dispersive x-ray fluorescence spectroscopy. In 2012 International Symposium on Radiation Physics - ISRP 2012, Rio, 2012. Proceedings of the 2012 International Symposium on Radiation Physics.Rio : International Radiation Physics Society, 2012. Resumo.
  • NEIVA, A. C., e Pinto, H P F. Considering selective corrosion in the interpretation of EDXRF results in bronze sculptures. In LASMAC-2011 - 3rd Latin-American Symposium on Physical and Chemical Methods in Archaeology, Art and Cultural Heritage Conservation, Lima, 2011. Book of abstracs.Lima : Universidad Nacional Mayor de San Marcos, 2011. Resumo.
  • Pinto, H P F, et al. Determining ppm contents of copper and zinc in biodiesel with energy-dispersive x-ray fluorescence spectroscopy. In 2012 International Symposium on Radiation Physics - ISRP 2012, Rio, 2012. Proceedings of the 2012 International Symposium on Radiation Physics.Rio : International Radiation Physics Society, 2012. Resumo.
  • CAMPOS, P. H. O. V., et al. Infrared and XRF analysis of a painting of the Brazilian artist Oscar Pereira da Silva. In LASMAC-2011 - 3rd Latin-American Symposium on Physical and Chemical Methods in Archaeology, Art and Cultural Heritage Conservation, Lima, 2011. Book of abstracs.Lima : Universidad Nacional Mayor de San Marcos, 2011. Resumo.
  • KAJYIA, E., et al. Image and EDXRF analysis of XIX-Century Brazilian paintings at the Pinacoteca do Estado de São Paulo. In LASMAC-2011 - 3rd Latin-American Symposium on Physical and Chemical Methods in Archaeology, Art and Cultural Heritage Conservation, Lima, 2011. Book of abstracs.Lima : Universidad Nacional Mayor de San Marcos, 2011. Resumo.
  • NEIVA, A. C., et al. EDXRF analysis of ceramic pieces of the collection of the Instituto Portucale. In LASMAC-2011 - 3rd Latin-American Symposium on Physical and Chemical Methods in Archaeology, Art and Cultural Heritage Conservation, Lima, 2011. Book of abstracs.Lima : Universidad Nacional Mayor de San Marcos, 2011. Resumo.
Todos los derechos de la tesis/disertación pertenecen a los autores
CeTI-SC/STI
Biblioteca Digital de Tesis y Disertaciones de la USP. Copyright © 2001-2024. Todos los derechos reservados.