Abstract
Synthetic cannabinoids are one of the most consumed new psychoactive substances, being absolutely necessary the development of analytical methodologies for the determination of these substances in biological fluids. In this study, a liquid chromatography with fluorescence detection (LC-FD) method has been developed for the analysis of 8 synthetic cannabinoids in oral fluids. The method has been validated in terms of linearity, precision and extraction recoveries, giving limits of detection as low as 0.7 µg L−1, and limits of quantification of 2.6 µg L−1. Different silica and polymeric commercial solid sorbents such as C18, Supel-Select HLB, EB2 ExtrabondⓇ and SampliQ-OPT were tested, concluding that Supel-Select HLB provided quantitative recoveries for the extraction of synthetic cannabinoids in oral fluids.•Analysis of synthetic cannabinoids in oral fluids.•Analytical procedure based on liquid chromatography with fluorescence detection.•Sample treatment based on solid phase extraction with HLB cartridges.
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