Application of a validated LC–MS/MS method for JWH-073 and its metabolites in blood and urine in real forensic cases. (December 2015)

• Record Type: Journal Article
• Authors: Ozturk, Serkan; Ozturk, Yeter Erol; Yeter, Oya; Alpertunga, Buket
• Is Part Of: Forensic science international. Volume 257(2015)
• Page Start: 165
• Page End: 171
• Publication Date: 2015-12
• Subjects: Synthetic cannabinoid -- JWH-073 -- Metabolite -- LC–MS/MS; Medical jurisprudence -- Periodicals; Chemistry, Forensic -- Periodicals; Forensic Medicine -- Periodicals; Médecine légale -- Périodiques; Chimie légale -- Périodiques; Gerechtelijke geneeskunde; Gerechtelijke chemie; Gerechtelijke psychiatrie; Chemistry, Forensic; Medical jurisprudence; Electronic journals; Periodicals; Electronic journals; 614.1
• DOI: 10.1016/j.forsciint.2015.08.013
• Languages: English
• ISSNs: 0379-0738

Abstract

Highlights: JWH-073 and its metabolites analysis in blood and urine samples using LC–MS/MS. Application to 2596 real forensic blood and urine samples between 2012 and 2015. A total of 5.5% of the samples were positive for JWH-073 metabolites. Provides data for the prevalence of JWH-073 use in Istanbul and neighbouring areas. Abstract: Synthetic cannabinoids, which were synthesized to improve the therapeutic effects of cannabis, have become a major issue when they are abused. They have different chemical structures from tetrahydrocannabinol (THC) but similar effects on endocannabinoid receptors. "Spice" named products have more serious side effects than cannabis and can even cause death. These mixtures are prepared by spraying chemicals onto small pieces of herbs and are being dishonestly sold as "natural" and "legal" products over the internet. Their popularity is continuously increasing. Studies on detecting synthetic cannabinoids in biological samples as well as pharmacology and toxicology studies of these chemicals are very limited. A fast, specific and robust method for the detection and quantification of JWH-073, JWH-073 N-butanoic acid, and JWH-073 N-(4-hydroxybutyl) in blood and urine has been developed that uses solid-phase extraction (SPE) followed by UPLC–MS/MS analysis. This method has been validated in terms of its linearity (0.1–50 ng/mL), selectivity, intra-assay and inter-assay accuracy and precision (CV < 10%), recovery (75-95%), limits of detection (LODs) (0.08-0.13 ng/mL), and limits of quantification (LOQs) (0.11-0.17 ng/mL). Matrix effects, stability, and process efficiency parameters of this method have also been assessed. This method was applied to 2596 authentic samples received by the Department of Toxicology (Istanbul) in the Presidency of Council of Forensic Medicine (Turkey) between September 1, 2012, and February 28, 2015.