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    Analytical Raman spectroscopy in a forensic art context: the non-destructive discrimination of genuine and fake lapis lazuli

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    Publication date
    2014
    Author
    Ali, Esam M.A.
    Edwards, Howell G.M.
    Keyword
    Forensic Sciences; Fourier analysis; Microscopy; Minerals; Spectrum analysis; Fake specimens; Forensic art analysis; Lapis lazuli; Raman spectroscopy
    Peer-Reviewed
    Yes
    
    Metadata
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    Abstract
    The differentiation between genuine and fake lapis lazuli specimens using Raman spectroscopy is assessed using laboratory and portable instrumentation operating at two longer wavelengths of excitation in the near-infrared, namely 1064 and 785 nm. In spite of the differences between the spectra excited here in the near infrared and those reported in the literature using visible excitation, it is clear that Raman spectroscopy at longer wavelengths can provide a means of differentiating between the fakes studied here and genuine lapis lazuli. The Raman spectra obtained from portable instrumentation can also achieve this result, which will be relevant for the verification of specimens which cannot be removed from collections and for the identification of genuine lapis lazuli inlays in, for example, complex jewellery and furniture. The non-destructive and non-contact character of the technique offers a special role for portable Raman spectroscopy in forensic art analysis.
    URI
    http://hdl.handle.net/10454/10414
    Version
    No full-text available in the repository
    Citation
    Ali EMA and Edwards HGM (2014) Analytical Raman spectroscopy in a forensic art context: the non-destructive discrimination of genuine and fake lapis lazuli. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 121: 415-419.
    Link to publisher’s version
    https://doi.org/10.1016/j.saa.2013.11.005
    Type
    Article
    Collections
    Life Sciences Publications

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