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Cannabidiol (CBD) is a popular natural remedy from the cannabis plant used in many pharmaceutical, food, and cosmetic products. Unlike tetrahydrocannabinol (THC), CBD is not psychoactive, making it an appealing option for those who are looking for relief from pain and other symptoms without mind-altering effects. CBD oil is made by extracting the cannabinoid from the plant, then diluting it with a carrier oil (e.g., coconut or hemp seed oil). The standard HPLC method requires 45 minutes to perform by highly trained analysts. In contrast to the primary method, Vis-NIR spectroscopy is a cost-efficient and fast analytical solution for the determination of cannabinoid content in edible oils.

Typically, cannabis potency testing is performed by HPLC, but the drawback is that it requires chemicals and it is time-consuming. Near-infrared spectroscopy (NIRS) is a preferred method for quantification of THC, CBD and CBG in dried cannabis because it provides results in less than a minute and does not require any chemicals.