Research Chemist, Forensic Science Research Unit, FBI Laboratory, FBI Academy, Quantico, VA
Special Agent, Materials Analysis Unit, FBI Laboratory, Washington, DC
(Received 6 January 1992; accepted 28 February 1992)
The forensic characterization of various samples of TNT is described. The analysis technique consists of extraction followed by normal phase liquid chromatography with photodiode array detection. The samples are examined by enhancing the minor components and impurities left over from manufacture, and using these components as points of comparison. Initial attempts to order the data using spectral searching and pattern recognition techniques are described.
Paper ID: JFS13348J