Development and validation of HPLC and GC methods for quantification of cannabinoids and terpenes extracted by ultrasound assisted extraction technique

Masoumeh Lazarjani; Ali Seyfoddin; Thao T. Le; Tony Chen

doi:10.22456/2527-2616.139666

Authors

Masoumeh Lazarjani Department of Science, Faculty of Health and Environmental Science - Auckland University of Technology
Ali Seyfoddin Department of Science, Faculty of Health and Environmental Science - Auckland University of Technology
Thao T. Le Department of Science, Faculty of Health and Environmental Science - Auckland University of Technology https://orcid.org/0000-0002-1882-1961
Tony Chen Department of Science, Faculty of Health and Environmental Science - Auckland University of Technology

DOI:

https://doi.org/10.22456/2527-2616.139666

Keywords:

HPLC analysis, gas chromatography, cannabinoids, terpenes, quantification

Abstract

Cannabis exhibits a wide array of therapeutic effects due to its diverse and potent compounds. High-performance liquid chromatography (HPLC) and gas chromatography-mass spectrometry (GC-MS) are the primary techniques used to quantify and qualify cannabinoids and terpenes in cannabis. This paper rigorously validates HPLC and GC-MS methods for quantifying cannabinoids and terpenes in cannabis plants. Cannabinoids and terpenes were extracted using an optimised ultrasound assisted extraction (UAE) method. The HPLC and GC-MS methods were validated by assessing linearity, limit of detection (LOD), limit of quantification (LOQ), recovery, precision (inter-day and intra-day), accuracy (inter-day and intra-day), and matrix effect for 12 cannabinoids and 30 terpenes using appropriate standards. The HPLC and GC results fell within acceptable ranges (for HPLC, recovery between 73-121%, precision, accuracy and matrix effect all were below 10%; and for GC, recovery between 79-91%, precision, accuracy and matrix effect all were below 10%) demonstrating the accuracy and reliability of the validated method. The findings of this study can be used effectively to measure these important compounds in cannabis samples, facilitating quality control and standardisation of cannabis-based products for therapeutic applications.

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