A Rapid Nano-Liquid Chromatographic Method for the Analysis of Cannabinoids in Cannabis sativa L. Extracts
Molecules. 2021 Mar 24;26(7):1825. doi: 10.3390/molecules26071825.
Cannabis sativa L. is an herbaceous plant belonging to the family of Cannabaceae. It is classified into three different chemotypes based on the different cannabinoids profile. In particular, fiber-type cannabis (hemp) is rich in cannabidiol (CBD) content. In the present work, a rapid nano liquid chromatographic method (nano-LC) was proposed for the determination of the main cannabinoids in Cannabis sativa L. (hemp) inflorescences belonging to different varieties. The nano-LC experiments were carried out in a 100 µm internal diameter capillary column packed with a C18 stationary phase for 15 cm with a mobile phase composed of ACN/H2O/formic acid, 80/19/1% (v/v/v). The reverse-phase nano-LC method allowed the complete separation of four standard cannabinoids in less than 12 min under isocratic elution mode. The nano-LC method coupled to ultraviolet (UV) detection was validated and applied to the quantification of the target analytes in cannabis extracts. The nano-LC system was also coupled to an electrospray ionization-mass spectrometry (ESI-MS) detector to confirm the identity of the cannabinoids present in hemp samples. For the extraction of the cannabinoids, three different approaches, including dynamic maceration (DM), ultrasound-assisted extraction (UAE), and an extraction procedure adapted from the French Pharmacopeia‘s protocol on medicinal plants, were carried out, and the results achieved were compared.
PMID:33805001 | DOI:10.3390/molecules26071825
#Hemp https://pubmed.ncbi.nlm.nih.gov/33805001/?utm_source=Chrome&utm_medium=rss&utm_campaign=None&utm_content=12OY-2YuXEtecDR7WE-A2c-rtPCJqs0e275YvMbwhvRR34bgib&fc=None&ff=20210404032501&v=2.14.3 April 3, 2021 10:00 am