Attenuated Total Reflection–Fourier transform infrared microspectroscopic mapping for the characterisation of paint cross-sections

Mazzeo, Rocco; Joseph, Edith; Prati, Silvia; Millemaggi, Aldo

doi:10.1016/j.aca.2007.07.076

Cited by 77 publications

(64 citation statements)

References 20 publications

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“…The first can be accounted for by the interactions of pigments with binding media. These interactions, especially with respect to lipids, can eventually lead to the formation of fatty acid salts (soaps) whose formation was noted in [7,12]. The latter can be explained by the differences in the mechanisms of signal formation in the studied techniques.…”

Section: Resultsmentioning

confidence: 99%

“…The assignments of the bands of the binding media and pigments can be found in [3,9,12]. Mazzeo et al [12] and Ploeger et al [9] proposed the band assignment in the spectra of various binding media and in particular the bands coming from lipid (C=O vibrations in ester) and protein (C=O in amide I and N-H in amide II). The alterations of binding media due to the interactions with pigments are discussed in [7,9,12].…”

mentioning

confidence: 99%

“…Mazzeo et al [12] and Ploeger et al [9] proposed the band assignment in the spectra of various binding media and in particular the bands coming from lipid (C=O vibrations in ester) and protein (C=O in amide I and N-H in amide II). The alterations of binding media due to the interactions with pigments are discussed in [7,9,12]. Ploeger et al identified the changes in the band frequencies between sampling techniques [9].…”

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confidence: 99%

“…These studies emphasise the applications of the microattenuated total reflection (ATR) technique to the analyses of the cross sections of paintings [5-7, 11, 12], or fibre optics (FO) based methods, which are more complex to interpret [2,9]. The assignments of the bands of the binding media and pigments can be found in [3,9,12]. Mazzeo et al [12] and Ploeger et al [9] proposed the band assignment in the spectra of various binding media and in particular the bands coming from lipid (C=O vibrations in ester) and protein (C=O in amide I and N-H in amide II).…”

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confidence: 99%

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Reflective and photoacoustic infrared spectroscopic techniques in assessment of binding media in paintings

et al. 2011

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This study proposes a method to estimate the lipid content in binding media in paintings that can be used at any laboratory equipped with an infrared spectrometer. The lipid content estimator, termed greasiness index (GI), is defined as a ratio of lipid ν(C=O) and protein amide I bands at 1743 and 1635 cm −1 , respectively. Three Fourier transform infrared (FTIR) sampling techniques were evaluated for GI determination: reflective attenuated total reflection-ATR, specular reflection microscopy-μSR and photoacoustic-PAS. A set of model painting samples containing three tempera binding media (casein, egg, egg + oil), seven pigments and one varnish type were used in the study. Multivariate analysis was used to evaluate the resulting data. A good reproducibility of GI was obtained by ATR and PAS but not with μSR. The discriminative power of the technique is higher for unvarnished samples, but, generally, the GI estimator can be used for the categorisation of binding media in large populations of painting samples analysed with the same FTIR technique (sampling technique, detection, etc.).

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Section: Resultsmentioning

confidence: 99%

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confidence: 99%

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confidence: 99%

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confidence: 99%

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Reflective and photoacoustic infrared spectroscopic techniques in assessment of binding media in paintings

et al. 2011

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“…[12][13][14][15][16][17][18][19] In recent years, macro-mapping IR imaging has been employed, but only in cross-sections. 20 The reflectance and the UV-fluorescence spectroscopies have been used for pigment identification, [21][22][23][24][25][26] but their potential for the identification of white pigment mixtures are still unexplored.…”

Section: Introductionmentioning

confidence: 99%

Spectral Behavior of White Pigment Mixtures Using Reflectance, Ultraviolet—Fluorescence Spectroscopy, and Multispectral Imaging

et al. 2017

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Reflectance spectroscopy, ultraviolet (UV)-fluorescence spectroscopy, and multispectral imaging have been widely employed for pigment identification on paintings. From ancient times to the present, lead white, zinc white, and titanium white have been the most important white pigments used for paintings and they are used as pigment markers for dating a work of art. The spectral behavior of these pigments is reported in several scientific papers and websites, but those of their mixtures are quite unknown. We present a combined nondestructive approach for identifying mixtures of lead white, zinc white, and titanium white as powder and dispersed in two different binder media (egg yolk and linseed oil) by using reflectance spectroscopy, spectrofluorimetry, multispectral reflectance and UV-fluorescence imaging. We propose a novel approach for mapping the presence of white pigments in paintings by false color images obtained from multispectral reflectance and UV-fluorescence images. We found that the presence of lead white mixed with either zinc white or titanium white is highly detectable. Zinc white mixed with lead white or titanium white can be identified due to its UV-fluorescence emission, whereas titanium white in association with lead white or zinc white is distinguishable by its reflectance spectral features. In most cases, the UV-fluorescence analyses also permit the recognition of the binder media in which the pigments are dispersed.

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Applications of Internal Reflection Spectroscopy in Forensic Analysis

Koçak

2016

Forensic Science

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Attenuated Total Reflection–Fourier transform infrared microspectroscopic mapping for the characterisation of paint cross-sections

Cited by 77 publications

References 20 publications

Reflective and photoacoustic infrared spectroscopic techniques in assessment of binding media in paintings

Reflective and photoacoustic infrared spectroscopic techniques in assessment of binding media in paintings

Spectral Behavior of White Pigment Mixtures Using Reflectance, Ultraviolet—Fluorescence Spectroscopy, and Multispectral Imaging

Applications of Internal Reflection Spectroscopy in Forensic Analysis

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