Synthetic colorants mass spectrometry

Natural black (human hair, bovine eyes) and synthetic (tyrosine, dopa, and dopamine) melanins were investigated by Curie point pyrolysis-gas chromatography-mass spectrometry (86,96). The pigments were characterized by different ratios of degradation products identified as aromatic hydrocarbons, phenols, catechols, pyrroles, and indoles. The amount of ash in karakul lamb wool was correlated to its color, with black producing the most (3.9%) and white the least (1.2%). Similar studies showed a correlation with the calcium content (317,318). [Pg.287]

See also Asbestos. Color Measurement. Forensic Sciences Thin-Layer Chromatography. Gas Chromatography Pyrolysis Mass Spectrometry Fourier Transform Infrared Spectroscopy. Microscopy Applications Forensic. Spectrophotometry Diode Array. Textiles Natural Synthetic. X-Ray Absorption and Diffraction X-Ray Diffraction - Powder. X-Ray Fluorescence and Emission X-Ray Fluorescence Theory Energy Dispersive X-Ray Fluorescence Total Reflection X-Ray Fluorescence. [Pg.1672]

Ma, M., X. B. Luo, B. Chen, S. P. Sub, and S. Z. Yao. 2006. Simultaneous determination of water-soluble and fat-soluble synthetic colorants in foodstuff by high-performance liquid chromatography-diode array detection-electrospray mass spectrometry. /. Chromatogr. A 1103(1) 170-176. [Pg.508]