Raman Microscopy Techniques for the Characterisation of Pigments

Chaplin, Tracey D.; Clark, Robin J. H.

doi:10.22443/rms.inf.1.12

Cited by 4 publications

(8 citation statements)

References 29 publications

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“…However, it is necessary to remember that the intensity of Raman scattering is proportional to the fourth power of the excitation frequency intensity. As a result, excitation by long-wave irradiation yields a Raman signal, which is considerably less intense than one obtained using short-wave excitation [14].…”

Section: Introductionmentioning

confidence: 89%

“…The most promising approach for investigation of dye degradation processes at this time is the Raman spectroscopy method. Raman spectroscopy is a unique tool for the explicit analysis of any material [14]. The main advantage of Raman spectroscopy is its non-destructive and non-invasive effect on a sample, which allows a back-to-back analysis to be conducted if necessary.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, this method is a fast and efficient way to conclusively identify both organic and inorganic substances, which indicates its high chemical selectivity [15]; moreover, the samples analyzed by Raman spectroscopy do not require preliminary preparation. Also, Raman spectroscopy enables very small samples (<1 µm) to be analyzed with a high spatial (≤1 µm) and spectral (<1 cm −1 ) resolution [14]. In turn, low laser radiation power (~4 mW) is sufficient to obtain Raman spectra, bringing the risks of potential laser-induced degradation to a minimum [15].…”

Section: Introductionmentioning

confidence: 99%

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Analysis of the Aging Processes of Writing Ink: Raman Spectroscopy versus Gas Chromatography Aspects

Grechukha¹,

Gorshkova

Panov

et al. 2017

Applied Sciences

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This work is devoted to the extremely popular but poorly developed scientific and forensic problem of the estimation of the actual dates of inscriptions placed on paper and made by ballpoint pens. It is shown that the degradation of writing inks with time may be controlled via Raman spectroscopy and gas chromatography. The time intervals for the implementation of each of these methods were determined using the ratios of the Raman peak intensities as degradation characteristics rather than their absolute values. In turn, this eliminates the effect of the concentration of a dye. The mutual influence of the volatile components and dyes of writing inks was also investigated and the time interval within which such influence is critical was found. According to the obtained results, a new methodological scheme for determining the age of documents, which were created at least 40 months ago, was proposed.

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Section: Introductionmentioning

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Analysis of the Aging Processes of Writing Ink: Raman Spectroscopy versus Gas Chromatography Aspects

Grechukha¹,

Gorshkova

Panov

et al. 2017

Applied Sciences

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“…Nevertheless, we need to remember that the intensity of Raman spectroscopy is proportional to the fourth degree of the intensity of driving frequency, in other words the control of long-wave radiation gives a much less intense combination signal than the control of short-wave radiation (Chaplin, Clark, 2006;Geiman, Leona, Lombardi, 2009).…”

Section: Summary Of Technical Problems Of Inscription's Examinationmentioning

confidence: 99%

“…• Raman spectroscopy (Mazzella, Buzzini, 2005;Lombardi et al, 2006, Chaplin, Clark, 2006Kalantzis, 2008;Geiman, Leona, Lombardi, 2009;Reisner, Cao, Pandya, 2011;Gorshkova et al, 2016;Grechukha et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Challenges of Forensic-Technical Expertise of Documents for Determining the Terms of Their Production

Rossinskaya¹,

Gorshkova²,

Kirillova³

et al. 2019

J. Sib. Fed. Univ., Humanit. soc. sci.

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The article discusses the problems of forensic-technical expertise by determination of handwritten signatures (records). The main techniques of such examination are described, as well as the problems, which experts face. Here the questions of qualification of experts are raised and recommendations about the choice and appointment of an expert are made. The article provides references to scientific materials in the Russian and foreign scientific sources and also gives examples of the current legislation and jurisprudence of arbitration courts of the Russian Federation. Keywords: examination of inscriptions, falsification of documents, gas chromatography, the Raman spectroscopy, dating of the documents, unity of measurements, qualification of an expert. The reported study was funded by Russian Foundation for Basic Research (RFBR) according to the research project No. 18-29-16003\18. Research area: law.

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Ancient potters, paintings and craft specialization in northwestern argentine region: new data through Raman characterization of pre- and postfiring ceramic paintings on Aguada Portezuelo Ceramics from Middle Period (Catamarca, Argentina)

Fuente

Martínez

2018

Archaeol Anthropol Sci

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Raman Microscopy Techniques for the Characterisation of Pigments

Cited by 4 publications

References 29 publications

Analysis of the Aging Processes of Writing Ink: Raman Spectroscopy versus Gas Chromatography Aspects

Analysis of the Aging Processes of Writing Ink: Raman Spectroscopy versus Gas Chromatography Aspects

Challenges of Forensic-Technical Expertise of Documents for Determining the Terms of Their Production

Ancient potters, paintings and craft specialization in northwestern argentine region: new data through Raman characterization of pre- and postfiring ceramic paintings on Aguada Portezuelo Ceramics from Middle Period (Catamarca, Argentina)

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