Pigments Elementary Chemical Composition Study of a Gainsborough Attributed Painting Employing a Portable X-Rays Fluorescence System

Appoloni, C R; Blonski, M S; Parreira, P S; Souza, L A. C.

doi:10.1063/1.2710629

Title: Pigments Elementary Chemical Composition Study of a Gainsborough Attributed Painting Employing a Portable X-Rays Fluorescence System

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Abstract

The investigated painting, identified with the title 'The woodman', is attributed to Thomas Gainsborough (XVIII century) and is under investigation at the Laboratory of Conservation Science (LACICOR), CECOR/EBA/UFMG. The measurements were carried out with a portable X-rays fluorescence (XRF) system constituted of a X-rays tube with Ag anode, a Si PIN - diode detector, nuclear electronic chain and a special designed mechanical system for the detector and X-ray tube positioning, that enables angular and XYZ movements of the excitation-detection system. The employed voltage and current intensity were 17 kV and 3 mA, respectively. The time of acquisition for each measurement was 500 s. XRF spectra were analyzed using the AXIL-WinQXAS software. Three measurements in each of the following regions of the painting were done: face, leaves, arm, sky and firewood. The carried out analysis indicated the following pigments: White (lead white and calcium sulfate, identified by the elements Pb, Ca and S), Blue (Prussian blue, identified by the key element Fe), Red (Vermilion, identified by the elements Hg and S) and Brown (mixture of Fe and Mn oxides, identified by the elements Fe and Mn). Elements belonging to modern pigments corresponding to the same colors were absent in the analyzedmore » spectra.« less

Authors:

Appoloni, C R; Blonski, M S ^[1]; Parreira, P S; Souza, L A. C. ^[2]

State University of Londrina, Department of Physics, Londrina, PR (Brazil)
Federal University of Minas Gerais, EBA/CECOR/LACICOR Belo Horizonte, MG (Brazil)

Publication Date:: Mon Feb 12 00:00:00 EST 2007

OSTI Identifier:: 21054867

Resource Type:: Journal Article

Journal Name:: AIP Conference Proceedings

Additional Journal Information:: Journal Volume: 884; Journal Issue: 1; Conference: 6. Latin American symposium on nuclear physics and applications, Iguazu (Argentina), 3-7 Oct 2005; Other Information: DOI: 10.1063/1.2710629; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X

Country of Publication:: United States

Language:: English

Subject:: 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; A CODES; CALCIUM; CALCIUM SULFATES; CHEMICAL COMPOSITION; CULTURAL OBJECTS; EXCITATION; FERROCYANIDES; IRON; LEAD; MANGANESE; MIXTURES; MULTI-ELEMENT ANALYSIS; PIGMENTS; QUANTITATIVE CHEMICAL ANALYSIS; SI SEMICONDUCTOR DETECTORS; SULFUR; WOOD FUELS; X-RAY FLUORESCENCE ANALYSIS; X-RAY TUBES

Citation Formats


                    Appoloni, C R, Blonski, M S, Parreira, P S, and Souza, L A. C. Pigments Elementary Chemical Composition Study of a Gainsborough Attributed Painting Employing a Portable X-Rays Fluorescence System.  United States: N. p., 2007. 
        Web.  doi:10.1063/1.2710629.

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                    Appoloni, C R, Blonski, M S, Parreira, P S, & Souza, L A. C. Pigments Elementary Chemical Composition Study of a Gainsborough Attributed Painting Employing a Portable X-Rays Fluorescence System.  United States.  https://doi.org/10.1063/1.2710629

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                    Appoloni, C R, Blonski, M S, Parreira, P S, and Souza, L A. C. 2007.  
        "Pigments Elementary Chemical Composition Study of a Gainsborough Attributed Painting Employing a Portable X-Rays Fluorescence System".  United States.  https://doi.org/10.1063/1.2710629.

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@article{osti_21054867,

  title        = {Pigments Elementary Chemical Composition Study of a Gainsborough Attributed Painting Employing a Portable X-Rays Fluorescence System},

  author       = {Appoloni, C R and Blonski, M S and Parreira, P S and Souza, L A. C.},

  abstractNote = {The investigated painting, identified with the title 'The woodman', is attributed to Thomas Gainsborough (XVIII century) and is under investigation at the Laboratory of Conservation Science (LACICOR), CECOR/EBA/UFMG. The measurements were carried out with a portable X-rays fluorescence (XRF) system constituted of a X-rays tube with Ag anode, a Si PIN - diode detector, nuclear electronic chain and a special designed mechanical system for the detector and X-ray tube positioning, that enables angular and XYZ movements of the excitation-detection system. The employed voltage and current intensity were 17 kV and 3 mA, respectively. The time of acquisition for each measurement was 500 s. XRF spectra were analyzed using the AXIL-WinQXAS software. Three measurements in each of the following regions of the painting were done: face, leaves, arm, sky and firewood. The carried out analysis indicated the following pigments: White (lead white and calcium sulfate, identified by the elements Pb, Ca and S), Blue (Prussian blue, identified by the key element Fe), Red (Vermilion, identified by the elements Hg and S) and Brown (mixture of Fe and Mn oxides, identified by the elements Fe and Mn). Elements belonging to modern pigments corresponding to the same colors were absent in the analyzed spectra.},

  doi          = {10.1063/1.2710629},

  url          = {https://www.osti.gov/biblio/21054867},
  journal      = {AIP Conference Proceedings},

  issn         = {0094-243X},

  number       = 1,

  volume       = 884,

  place        = {United States},

  year         = {Mon Feb 12 00:00:00 EST 2007},

  month        = {Mon Feb 12 00:00:00 EST 2007}

}

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