Volume 22, Issue 4 (October 1977)
Pyrolysis Mass Spectrometry—A New Forensic Science Technique
Pyrolysis gas chromatography (PGC) has found wide acceptance in forensic science laboratories as a technique for identifying and comparing many types of synthetic polymeric materials, particulary paints, adhesives, and fibers [1–5]. As a tool for identification, this technique is restricted to assorting polymeric materials into broad classes. Wheals and Noble  have demonstrated the ease of identifying thermosetting alkyd finishes, acrylic lacquers, and acrylic enamels by PGC. Stewart  has used PGC to distinguish the three types of nonaqueous dispersion acrylic enamels commonly used by American automobile manufacturers, thereby facilitating the identification of a car's make and model from the pyrogram of its paint binder.