No more waiting hours and reagent costs to determine the level of delta-9-tetrahydrocannabinol ( Thc ) and cannabidiol ( Cbd ) in cannabis . Now it will be possible to use a rapid technique with a microscope which, in the future, could prove useful both for further scientific studies and for developing new tools and techniques for the detection of drugs.
This is what was discovered in a study by a team of Sardinian researchers , coordinated by Professor Pier Carlo Ricci (professor of Experimental Physics of Matter at the Physics Department of the University of Cagliari), and born from a collaboration between the same university and the Investigations Department. Sciences (Ris) of the Carabinieri of Cagliari, Chemical section, led by Major Marco Palanca and assisted by the deputy officer, Lieutenant Enrica Tuveri, by Dr. Pierluigi Cortis and Antonio De Agostini of the botanical section of the Department of Life and Environmental Sciences of UniCa .
The need to "find a quick and useful technique for on-site detection of the content of Thcc and Cbd in cannabis sativa L. is an ever-growing problem in the forensic field", reads the abstract of the article recently published in the international journal Analytical Chemistry.
THE STUDY - The technique used is that of Raman spectroscopy which has proved to be the cheapest, fastest, non-invasive and non-destructive and highly reproducible.
The investigation analyzed 42 different samples with the use of a laser working in the infrared spectrum region which showed the possibility of clearly identifying Thc and Cbd in fresh samples, "without further processing, eliminating the contribution of the fluorescence generated by the sources. in the visible and in the near IR - explains Dr. Stefania Porcu , of the Physics Department of Cagliari, first signatory of the article - The results allow to assign all the Raman characteristics to natural samples rich in Thc and Cbd ".
(Unioneonline / vl)
