Analysis of Parent Synthetic Cannabinoids in Blood and Urinary Metabolites by Liquid Chromatography Tandem Mass Spectrometry

Journal of Analytical Toxicology
Jessica L KnittelThomas Z Bosy

Abstract

Synthetic cannabinoids emerged on the designer drug market in recent years due to their ability to produce cannabis-like effects without the risk of detection by traditional drug testing techniques such as immunoassay and gas chromatography-mass spectrometry. As government agencies work to schedule existing synthetic cannabinoids, new, unregulated and structurally diverse compounds continue to be developed and sold. Synthetic cannabinoids undergo extensive metabolic conversion. Consequently, both blood and urine specimens may play an important role in the forensic analysis of synthetic cannabinoids. It has been observed that structurally similar synthetic cannabinoids follow common metabolic pathways, which often produce metabolites with similar metabolic transformations. Presented are two validated quantitative methods for extracting and identifying 15 parent synthetic cannabinoids in blood, 17 synthetic cannabinoid metabolites in urine and the qualitative identification of 2 additional parent compounds. The linear range for most synthetic cannabinoid compounds monitored was 0.1-10 ng/mL with the limit of detection between 0.01 and 0.5 ng/mL. Selectivity, specificity, accuracy, precision, recovery and matrix effect were also e...Continue Reading

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Jun 13, 2020·Critical Reviews in Toxicology·Vera L AlvesJosé S Câmara
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