Stefania Porcu, Enrica Tuveri, Marco Palanca, Claudia Melis, Ignazio Macellaro La Franca, Jessica Satta, Daniele Chiriu, Carlo Maria Carbonaro, Pierluigi Cortis, Antonio De Agostini, Pier Carlo Ricci
The need to find a rapid and worthwhile technique for the in situ detection of the content of delta-9-tetrahydrocannabinol (THC) and cannabidiol (CBD) in Cannabis sativa L. is an ever-increasing problem in the forensic field. Among all the techniques for the detection of cannabinoids, Raman spectroscopy can be identified as the most cost-effective, fast, noninvasive, and nondestructive. In this study, 42 different samples were analyzed using Raman spectroscopy with 1064 nm excitation wavelength. The use of an IR wavelength laser showed the possibility to clearly identify THC and CBD in fresh samples, without any further processing, knocking out the contribution of the fluorescence generated by visible and near-IR sources...
July 26, 2022: Analytical Chemistry