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Forensic Examination of Textile Fibers Using UV-Vis Spectroscopy Combined with Multivariate Analysis

  • Vishal SharmaEmail author
  • Raj Kumar
  • Pawandeep Kaur
Article
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The current study aims at discriminating cotton and woolen textile fibers from dye using UV-Vis spectroscopy and chemometrics methods. For extraction of the dye from fibers, seven solvent systems have been used, and different extraction conditions have also been tested. Two different approaches, i.e., a visual comparison of peaks and chemometric analysis, have been proposed to differentiate between the textile fibers. The comparison of peaks obtained through UV-Vis spectra provides the discrimination power of 83.6% for cotton fibers and 94.3% for the woolen fibers. However, the incorporation of chemometrics has further improved the discrimination power to 100% for cotton and 98.1% for woolen fibers. The discrimination of 100% is achieved with nonsignificant values of the Welch's t-test, which illustrates that all samples are discriminated.

Keywords

textile fiber chemometrics UV-Vis spectroscopy forensic Welch's t-test 

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© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Institute of Forensic Science and CriminologyPanjab UniversityChandigarhIndia

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