J Forensic Sci 2021 Mar 1. Epub 2021 Mar 1.
John Jay College of Criminal Justice - Sciences, CUNY, New York, NY, USA.
Although organic material is often used for forensic analysis, a substantial portion of the data gathered for determination of common origin of forensic soil samples is the inorganic, mineralogical composition of the sample, which may be obscured by the presence of soil organic material (SOM). Traditionally, SOM is removed by acidic, alkaline, or peroxide digest, or by combustion, but these techniques risk the damage to or destruction of target minerals of interest. Low-temperature plasma ashing, on the other hand, removes organic materials by exposing them to plasma ions with high-kinetic energy, converting organics to easily removed volatile products (CO, CO , H O, or methane) while avoiding the thermal alterations caused by heat combustion. Read More