Validation of analytical method of cannabinoids: Novel approach using turbo-extraction

Talanta. 2023 Mar 1;254:124108. doi: 10.1016/j.talanta.2022.124108. Epub 2022 Nov 17.

Abstract

The development of simple, efficient, and low-cost analytical methods is essential for the evaluation and monitoring of the main cannabinoids in Cannabis-based products. In this sense, the objectives of this study were to develop and validate an analytical method for obtaining and determining cannabinoids in a pool sample. Two extraction techniques were used, ultrasound and turbo-extraction, and two system-solvents, methanol:chloroform (9:1 v:v) and ethanol. The analytical method used and validated was carried out in High Performance Liquid Chromatography with Diodes Array Detector. The cannabidiol standard was characterized by a nuclear magnetic resonance. The use of the proposed method makes it possible to identify cannabinoids, both in the acid form and in the neutral form, in 7 min of analysis. The results confirmed high precision and accuracy. The detection and quantification limits were 0.19 μg/mL and 5 μg/mL, respectively. The method developed proved to be selective and robust for the evaluation of cannabinoids. It is hoped that the methods developed can be used to obtain and analyze cannabinoids, both for medicinal purposes and for forensic analysis.

Keywords: Cannabis; Extraction; Forensic sciences; Hemp; High performance liquid chromatography; Magnetic resonance spectroscopy.

MeSH terms

  • Cannabidiol* / analysis
  • Cannabinoids* / analysis
  • Cannabis* / chemistry
  • Chromatography, High Pressure Liquid / methods
  • Hallucinogens*

Substances

  • Cannabinoids
  • Cannabidiol
  • Hallucinogens