Analysis of fiber dyes by liquid chromatography mass spectrometry (LC-MS) with electrospray ionization: Discriminating between dyes with indistinguishable UV-Visible absorption spectra
Abbreviated Journal Title
J. Forensic Sci.
forensic science; fiber dye identification; liquid chromatography mass; spectrometry; UV/visible detection; AZO DYES; SULFONATED DYES; TEXTILE FIBERS; THERMOSPRAY; Medicine, Legal
Liquid chromatography mass spectrometry (LC-MS) is shown to provide high discriminating power for the identification of textile dyes that can not be reliably distinguished on the basis of their UV/visible absorption profile. Seven pairs of commercial dyes having nearly identical UV/visible absorption profiles and absorption maxima within 5 run, were identified successfully by LC-MS. Two pairs of cotton fibers, which were indistinguishable by microspectrophotometry, were differentiated by LC-MS. A single wavelength UV/visible detector was used to monitoring dye elution from the column. The utility of the method for comparim, questioned and known fibers is discussed.
Journal of Forensic Sciences
Article; Proceedings Paper
"Analysis of fiber dyes by liquid chromatography mass spectrometry (LC-MS) with electrospray ionization: Discriminating between dyes with indistinguishable UV-Visible absorption spectra" (2005). Faculty Bibliography 2000s. 5286.