The D iscrimination of C olored A crylic, C otton, and W ool T extile F ibers U sing M icro‐ R aman S pectroscopy. P art 1: I n situ D etection and C haracterization of D yes

作者：Patrick Buzzini, Geneviève Massonnet · 发表于：Journal of Forensic Sciences · 年份：2013 · DOI：10.1111/1556-4029.12298 · 被引用次数：31 · 研究领域：Spectroscopy and Chemometric Analyses、Spectroscopy Techniques in Biomedical and Chemical Research、Cultural Heritage Materials Analysis

Raman spectroscopy has been applied to characterize fiber dyes and determine the discriminating ability of the method. Black, blue, and red acrylic, cotton, and wool samples were analyzed. Four excitation sources were used to obtain complementary responses in the case of fluorescent samples. Fibers that did not provide informative spectra using a given laser were usually detected using another wavelength. For any colored acrylic, the 633-nm laser did not provide Raman information. The 514-nm laser provided the highest discrimination for blue and black cotton, but half of the blue cottons produced noninformative spectra. The 830-nm laser exhibited the highest discrimination for red cotton. Both visible lasers provided the highest discrimination for black and blue wool, and NIR lasers produced remarkable separation for red and black wool. This study shows that the discriminating ability of Raman spectroscopy depends on the fiber type, color, and the laser wavelength.