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SelectScience’s Dr Lois Manton spoke to Andrew Dadson, from Diamond Analytics, about the development of new nano-diamond FLARE columns, used in the separation and testing of cannabinoids in cannabis testing labs.

The use of cannabis for medicinal purposes is increasing, with many states in the US now legalizing marijuana for such uses. SelectScience’s Dr Lois Manton spoke to Andrew Dadson, from Diamond Analytics, about the development of new nano-diamond FLARE columns, used in the separation and testing of cannabinoids in cannabis testing labs.

What is a Cannabinoid?

“Cannabinoids are a diverse group of compounds that are present in the cannabis plant (also known as Cannabis sativa),” says Andrew. “The broader definition of cannabinoids refers to a group of substances that are structurally related to tetrahydrocannabinol (THC), or that bind to cannabinoid receptors. THC is the primary psychoactive ingredient of cannabis, which is responsible of producing a euphoric feeling or ‘high’ during use.”

“Gas Chromatography (GC) is commonly used for the analysis of cannabis samples, e.g., in forensic chemistry and in quality control applications. However, as this method is based on sample heating, acidic forms of cannabinoids are decarboxylated into their neutral counterparts. Further, GC is only applicable to samples that are volatile or can be volatilized through derivatization.”

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