Forensic toxicologists need an economical solution to screen for a virtually unlimited number of compounds in urine. Here we present a method for screening using a dilute-and-shoot approach with the Q Exactive Focus mass spectrometer and Thermo Scientific ToxFinder software. For forensic use only.

Cannabis is the most frequently abused drug and THC the major psychoactive constituent. THC is primarily metabolized to THC-OH, which has equipotent psychoactivity and is further metabolized to nonpsychoactive THC-COOH. Second-phase metabolites, are also present in blood and can be used as markers to determine recency of intake while improving interpretation of analytical results. LC-MS analytical methods are widely used for analysis of THC and metabolites. LC-MS methods do not require sample derivatization, thus yielding savings over typical GC-MS procedures. For forensic use only.

The Substance Abuse and Mental Health Services Administration (SAMHSA) lists delta9-tetrahydrocannabinol (THC) as the only target analyte for detection of cannabis use in oral fluid at 2 ng/mL confirmation cutoff concentration. In this study, we developed a sensitive and efficient method for simultaneous determination of THC and THCCOOH in OF. Both analytes were extracted using a simple and fast SPE method without pre-conditioning, evaporation, or reconstitution. THCCOOH was detected with high sensitivity (LOQ 10 pg/mL), and no derivatization procedure was required. For forensic use only.

Due to its increased abuse, forensic and testing labs test routinely for the presence of buprenorphine and its metabolite norbuprenorphine. To reduce their case backlog, these labs need cost-efficient analytical tests on hundreds of samples. We developed a high-throughput screening and quantitation LC-MS/MS method in which urine samples are quickly prepared and analyzed by a short chromatographic method implemented on a four-channel LC-MS system for improved productivity. For forensic use only.

Forensic toxicologists need an economical instrument capable of both screening a large number of compounds and quantifying smaller panels to industry-established limits. Here we present a method for quantitation of six opiates - morphine, codeine, hydromorphone, hydrocodone, oxymorphone, and oxycodone - in human urine down to low ng/mL levels. This work was performed on a Q Exactive Focus hybrid quadrupole Orbitrap mass spectrometer. For forensic use only.