查看文章

The collection, transport and processing of evidence found at clandestine laboratory installations is a challenging task for forensic practitioners, as samples are often of high magnitude and complexity, as well as located in exceedingly unsafe conditions. Direct sampling, portable mass spectrometers coupled with ambient ionization methods have been reported for forensic applications and have the potential to fulfill the requirements of clandestine laboratory evidence processing, allowing on-site identification of chemical evidence in its native state and expediting criminal investigations. To demonstrate this potential, a portable MS system coupled with simplified DESI, PSI, and APCI ionization sources, was utilized to monitor two common synthetic routes for clandestine methamphetamine production and screen representative evidence types resulting from these installations. Specific evidence examined in these …