• Login
     
    View Item 
    •   ORFEO Home
    • Belspo
    • Belspo Publications
    • View Item
    •   ORFEO Home
    • Belspo
    • Belspo Publications
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Discrimination of textile dyes in binary mixtures by Raman spectroscopy

    View/Open
    Pre-publication proof (914.2Kb)
    Authors
    Lepot, Laurent
    Show allShow less
    Discipline
    Chemical sciences
    Subject
    pigments
    scattering ability
    forensic fibre examination
    resonance
    laser source
    Audience
    Scientific
    Date
    2020-01-23
    Publisher
    Wiley
    Metadata
    Show full item record
    Description
    For forensic investigation of dyes used in the textile dying industry by Raman spectroscopy, the capability to discriminate several dyes is significant. When trace samples of fibres tainted with unknown dyes have to be confronted to a reference material, the minor dye is typically present in less than 10 wt% in the dyeing preparations. In the present study, we investigate the ability of Raman spectroscopy to discriminate two dyes in binary mixtures. 50 mixtures were prepared from a selection of five textile dyes in various molar proportion. They were systematically studied with two excitation laser sources at 514 nm and at 785 nm, both referenced in the forensic fibre literature. Representative data were obtained for different scenario's considering the relative capability of each dye to lead to high or weak Raman signal as well as possible fluorescence emission. In particular, we discuss the complementarity of the data obtained with both lasers and the supervised data exploratory treatments leading to the detection of the dye signal: from the simple observation by the operator, the search in spectral databases to the quantitative spectral subtraction of the dominant dye contribution.
    Citation
    Lepot, L., De Wael, K., Gason, F., Gilbert, B., Eppe, G. & Malherbe, C. (2020). Discrimination of textile dyes in binary mixtures by Raman spectroscopy. Journal of Raman Spectroscopy, 51(4), 717‑730. https://doi.org/10.1002/jrs.5831
    Identifiers
    uri: https://orfeo.belnet.be/handle/internal/13268
    doi: https://doi.org/10.1002/jrs.5831
    Type
    Article
    Peer-Review
    Yes
    Language
    eng
    Links
    NewsHelpdeskBELSPO OA Policy

    Browse

    All of ORFEOCommunities & CollectionsBy Issue DateAuthorsTitlesDisciplinesThis CollectionBy Issue DateAuthorsTitlesDisciplines
     

    DSpace software copyright © 2002-2016  DuraSpace
    Send Feedback | Cookie Information
    Theme by 
    Atmire NV