The invention discloses a method for rapidly detecting ten cannabinoids in industrial hemp fresh floral leaves based on an HPLC (
High Performance Liquid Chromatography) method. The method comprises the following steps: S1, preparing a mixed
standard solution; s2, pretreatment of a fresh industrial
cannabis sativa floral leaf sample:
liquid nitrogen grinding wall breaking,
solvent ultrasonic extraction and low-temperature
centrifugation are carried out, and a supernatant is taken for
sample preparation; and S3,
high performance liquid chromatography determination. The ten cannabinoids disclosed by the invention comprise
cannabidiol (CBD),
cannabidiol acid (CBDA), hypocannabidiol (CBDV),
tetrahydrocannabinol acid (THCA),
delta 9-
tetrahydrocannabinol (
delta 9-THC),
delta 8-
tetrahydrocannabinol (delta 8-THC), hypocannabinol (THCV),
cannabinoid phenol (CBG),
cannabinol (CBN) and cannabinocene (CBC). According to the method, the situation that
carboxylic acid cannabinoid in fresh floral leaves is prone to
decarboxylation conversion in the pretreatment process is fully considered, low-temperature extraction is conducted through
liquid nitrogen grinding wall breaking, and it is ensured that
carboxylic acid cannabinoid is stable. The detection method disclosed by the invention realizes high-
throughput detection of 10 cannabinoids, can rapidly, objectively, accurately and synchronously detect various cannabinoids including
carboxylic acid cannabinoids in fresh industrial hemp floral leaves, and has the advantages of short detection time (not exceeding 15 minutes), accurate quantification, reliable result, high efficiency and the like; and a reliable basis can be provided for industrial hemp characteristic variety breeding and scientific harvesting.