Response to the manuscript titled “An assessment of the potency related to Cannabis-based products in the South African market” by H.J. Viviers et al. FSI 322 (2021) 110754

The data in Table 1 in the original paper revealed misspelling of New Zealand, stated that the tetrahydrocannabinol (THC) limit for hemp in South Africa is 0.1% by weight, stated that Canada legally allows any concentration of THC in hemp which is false, and seems to imply Australia has a unified na...

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Bibliographic Details
Published in:Forensic science international 2021-10, Vol.327, p.110933-110933, Article 110933
Main Authors: Bennett, Alyson, Walker, Roderick B.
Format: Article
Language:English
Subjects:
Cannabidiol
Cannabis
Chromatography
Flow velocity
Hemp
High performance liquid chromatography
Laboratories
Legislation
Liquid chromatography
Marijuana
Oils & fats
Phase composition
Regulation
Stationary phase
Tetrahydrocannabinol
THC
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Summary:The data in Table 1 in the original paper revealed misspelling of New Zealand, stated that the tetrahydrocannabinol (THC) limit for hemp in South Africa is 0.1% by weight, stated that Canada legally allows any concentration of THC in hemp which is false, and seems to imply Australia has a unified national policy when in fact the states and territories have separate policies that apply to hemp and not just hemp seed oil [1]. [...]any reference to Cannabis as a Schedule 7 substance was removed by publication of this notice [4]. [...]there was no specific information about the HPLC chromatographic method such as whether it was an isocratic or gradient elution, the mobile phase composition, flow rate, wavelength of detection, stationary phase used or indeed a reference from which this information could be obtained. [...]Viviers et al. states samples “adhered to the legal South African industrial hemp THC limit” in their discussion which is as we now know to be 0.2% and not 0.1% THC, however we believe this statement is misleading [1].
ISSN:0379-0738
1872-6283
DOI:10.1016/j.forsciint.2021.110933