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Article

Simultaneous Quantification of 17 Cannabinoids in Cannabis Inflorescence by Liquid Chromatography-Mass Spectrometry

1
Southern Cross Plant Science, Faculty of Science and Engineering, Southern Cross University, Lismore, NSW 2480, Australia
2
New South Wales Department of Primary Industries, 105 Prince Street, Orange, NSW 2800, Australia
*
Author to whom correspondence should be addressed.
Academic Editor: Victoria Samanidou
Separations 2022, 9(4), 85; https://doi.org/10.3390/separations9040085
Received: 1 March 2022 / Revised: 25 March 2022 / Accepted: 25 March 2022 / Published: 28 March 2022
(This article belongs to the Special Issue Separation and Quantitative Analysis of Natural Product Extracts)
With an increasing appreciation for the unique pharmacological properties associated with distinct, individual cannabinoids of Cannabis sativa, there is demand for accurate and reliable quantification for a growing number of them. Although recent methods are based on highly selective chromatography-mass spectrometry technology, most are limited to a few cannabinoids, while relying on unnecessarily sophisticated and expensive ultra-high performance liquid chromatography and tandem mass spectrometry. Here we report an optimised, simple extraction method followed by a reliable and simple high performance liquid chromatography method for separation. The detection is performed using a time-of-flight mass spectrometer that is available in most natural products research laboratories. Due to the simplicity of instrumentation, and the robustness resulting from a high resolution in the chromatography of isobaric cannabinoids, the method is well suited for routine phytocannabinoid analysis for a range of applications. The method was validated in terms of detection and quantification limits, repeatability, and recoveries for a total of 17 cannabinoids: detection limits were in the range 11–520 pg when using a 1 µL sample injection volume, and the recovery percentages ranged from 85% to 108%. The validated method was subsequently applied to determine cannabinoid composition in the inflorescences of several medicinal Cannabis sativa varieties. View Full-Text
Keywords: cannabinoids; phytocannabinoids; LC-MS; Cannabis sativa; tetrahydrocannabinol (THC); cannabidiol (CBD) cannabinoids; phytocannabinoids; LC-MS; Cannabis sativa; tetrahydrocannabinol (THC); cannabidiol (CBD)
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MDPI and ACS Style

Hewavitharana, A.K.; Gloerfelt-Tarp, F.; Nolan, M.; Barkla, B.J.; Purdy, S.; Kretzschmar, T. Simultaneous Quantification of 17 Cannabinoids in Cannabis Inflorescence by Liquid Chromatography-Mass Spectrometry. Separations 2022, 9, 85. https://doi.org/10.3390/separations9040085

AMA Style

Hewavitharana AK, Gloerfelt-Tarp F, Nolan M, Barkla BJ, Purdy S, Kretzschmar T. Simultaneous Quantification of 17 Cannabinoids in Cannabis Inflorescence by Liquid Chromatography-Mass Spectrometry. Separations. 2022; 9(4):85. https://doi.org/10.3390/separations9040085

Chicago/Turabian Style

Hewavitharana, Amitha K., Francine Gloerfelt-Tarp, Matthew Nolan, Bronwyn J. Barkla, Sarah Purdy, and Tobias Kretzschmar. 2022. "Simultaneous Quantification of 17 Cannabinoids in Cannabis Inflorescence by Liquid Chromatography-Mass Spectrometry" Separations 9, no. 4: 85. https://doi.org/10.3390/separations9040085

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