Room-Temperature Fluorescence Excitation-Emission Matrices for Comparing Textile Fibers as Physical Evidence

GOICOECHEA, HÉCTOR C; A CAMPIGLIA,; MATTEW REX

Reno, USA

Congreso; Annual Meeting Federation of Analytical Chemistry and Spectroscopy Society (FACSS 2008); 2008

This presentation focuses on the development of nondestructive analytical methodology capable of providing highly discriminating identification of textile fibers encountered as physical evidence in criminal investigations. We answer pertinent questions towards the successful achievement of our final goal. Experimental data collected via Room-Temperature Fluorescence (RTF) Spectroscopy and High-Performance Liquid Chromatography demonstrate the value of fluorescent impurities as reproducible sources of fiber characterization. The potential of room-temperature fluorescence excitation – emission matrices (RTF-EEM) as a valuable data format for comparing textile dyestuffs and/or fluorescence impurities without the need of previous chromatographic separation is demonstrated.