Abstract
Forensic profiling methods are critical to associate materials found in a crime scene with materials retrieved from a suspect. Isotope ratio mass spectrometry provides opportunity for possible differentiation among samples originating from different sources and has been engaged to solve forensic cases via discrimination not achievable with traditional techniques. Although it has been proven a useful tool in forensic cases its use is still limited. A preliminary evaluation of the IRMS technique towards the measurement of carbon isotope values in tetryl samples has been performed in the present study. Six samples of the explosive tetryl were analyzed using gas chromatography coupled with isotope ratio mass spectrometry and full discrimination among samples was achieved by measuring only carbon isotope ratios (13C/12C).
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