Hemp

A rapid LC–MS/MS method is presented for the quantitative analysis of 16 cannabinoids in hemp samples with a single dilution protocol.

Cannabis Science and Technology® will host its first Hemp Science & Technology Virtual Symposium. Brian C. Smith, PhD, founder, CEO, and chief technical officer of Big Sur Scientific, will serve as the two-day event’s program chair.

Here a scientifically based representative sampling plan for hemp grows is presented, detailing how to collect composite samples, how many to collect, and how to analyze them.

A novel mid-infrared spectrometer that measures total THC in dried, ground cannabis plant material in 2 min is discussed as well as the applications of this analyzer for law enforcement, forensic laboratories, and regulatory agencies.

A proper set of hemp standard reference materials courtesy of the University of Kentucky are now available and the implications of this for hemp testing are discussed.

How quickly can a cannabis or hemp testing laboratory see return on investment?

How can we solve hemp testing problems such as representative sampling, composite samples, and insuring there will be enough testing capacity to meet the demand?

Dmitry Kurouski discusses the groundbreaking work his team is conducting using a handheld Raman spectrometer to identify cannabis and hemp plants.

This tutorial article outlines a holistic approach to scaling up.

The U.S. Department of Agriculture (USDA) recently issued a temporary delay regarding enforcement on two provisions of its hemp regulations (1).

A report on the findings from the initial field evaluation of a molecular DNA-based assay to distinguish the categories of fiber hemp, resin hemp, and THC cannabis based on genetics.

Applications of a quantitative mid-infrared spectrometer for hemp farmers, hemp extractors, state regulators, and law enforcement are discussed.

The U.S. Secretary of Agriculture, Sonny Perdue, announced the establishment of the U.S. Domestic Hemp Production Program on October 29, 2019.  

Here we look at different sources of potential contamination exposure that may be of concern to both the cannabis industry and the cannabis consumer.

A number of causes of hemp testing insanity are documented such as different states using different THC measures to determine legality, lack of representative sampling, and more.

So much is going on in the industry today that researchers are gearing up for more access to the plant, more potential lab discoveries, and better science to truly uncover the secrets of the cannabis plant and find out more about what the plant has to offer.

In this installment of “Cannabis Crossroads,” we take a closer look at the hemp revolution, and more specifically, academic hemp research.

A primary impediment to cannabinoid research is the fact that materials possessing psychoactive Δ9-tetrahydrocannabinol (THC) are considered Schedule I drugs as defined in the U.S. Controlled Substances Act. An alternative source of cannabinoids may be found in hemp oil extracts. Hemp contains a low percentage of THC by weight but relatively high amounts of nonpsychoactive cannabinoids. The liquid chromatography–time-of-flight mass spectrometry (LC–TOF-MS) method presented herein allows for the accurate, precise, and robust speciation, profiling, and quantification of cannabinoids in hemp oil extracts and commercial cannabinoid products for research and development laboratories. The method was determined to chromatographically separate 11 cannabinoids including differentiation of Δ8-tetrahdrocannabinol and THC with excellent linear dynamic range, specificity, and sensitivity.