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Typek R, Holowinski P, Dawidowicz AL, Dybowski MP, Rombel M. Chromatographic analysis of CBD and THC after their acylation with blockade of compound transformation. Talanta 2022; 251:123777. [DOI: 10.1016/j.talanta.2022.123777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 07/19/2022] [Accepted: 07/23/2022] [Indexed: 11/27/2022]
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Holowinski P, Typek R, Dawidowicz AL, Rombel M, Dybowski MP. Formation of trifluoroacetic artefacts in gas chromatograph injector during Cannabidiol analysis. J Chromatogr A 2022; 1671:463020. [DOI: 10.1016/j.chroma.2022.463020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 03/30/2022] [Accepted: 03/31/2022] [Indexed: 01/07/2023]
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Analytical Errors. Forensic Toxicol 2022. [DOI: 10.1016/b978-0-12-819286-3.00016-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Meehan-Atrash J, Rahman I. Cannabis Vaping: Existing and Emerging Modalities, Chemistry, and Pulmonary Toxicology. Chem Res Toxicol 2021; 34:2169-2179. [PMID: 34622654 DOI: 10.1021/acs.chemrestox.1c00290] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The outbreak of e-cigarette or vaping product use-associated lung injury (EVALI) has been cause for concern to the medical community, particularly given that this novel illness has coincided with the COVID-19 pandemic, another cause of severe pulmonary illness. Though cannabis e-cigarettes tainted with vitamin E acetate were primarily associated with EVALI, acute lung injuries stemming from cannabis inhalation were reported in the literature prior to 2019, and it has been suggested that cannabis components or additives other than vitamin E acetate may be responsible. Despite these concerning issues, novel cannabis vaporizer ingredients continue to arise, such as Δ8-tetrahydrocannabinol, Δ10-tetrahydrocannabinol, hexahydrocannabinol, and cannabichromene. In order to address cannabis e-cigarette safety and vaping in an effective manner, we provide a comprehensive knowledge of the latest products, delivery modes, and ingredients. This perspective highlights the types of cannabis vaping modalities common to the United States cannabis market, with special attention to cartridge-type cannabis e-cigarette toxicology and their involvement in the EVALI outbreak, in particular, acute lung injurious responses. Novel ingredient chemistry, origins, and legal statuses are reviewed, as well as the toxicology of known cannabis e-cigarette aerosol components.
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Affiliation(s)
- Jiries Meehan-Atrash
- Department of Environmental Medicine, University of Rochester Medical Center, Box 850, 601 Elmwood Avenue, Rochester, New York 14642, United States
| | - Irfan Rahman
- Department of Environmental Medicine, University of Rochester Medical Center, Box 850, 601 Elmwood Avenue, Rochester, New York 14642, United States
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Lin L, Amaratunga P, Reed J, Huang P, Lemberg BL, Lemberg D. Quantitation of Δ8-THC, Δ9-THC, Cannabidiol, and Ten Other Cannabinoids and Metabolites in Oral Fluid by HPLC-MS/MS. J Anal Toxicol 2020; 46:76-88. [PMID: 33270860 DOI: 10.1093/jat/bkaa184] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 11/27/2020] [Accepted: 12/03/2020] [Indexed: 12/15/2022] Open
Abstract
Quantitative analysis of Δ9-tetrahydrocannabinol (Δ9-THC) in oral fluid has gained increasing interest in clinical and forensic toxicology laboratories. New medicinal and/or recreational cannabinoid products require laboratories to distinguish different patterns of cannabinoid use. This study validated a high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) method for 13 different cannabinoids, including (-)-trans-Δ8-tetrahydrocannabinol (Δ8-THC), (-)-trans-Δ9-tetrahydrocannabinol (Δ9-THC), cannabidiol (CBD), Δ9-tetrahydrocannabinolic acid-A (Δ9-THCA-A), cannabidiolic acid (CBDA), 11-hydroxy-Δ9-tetrahydrocannabinol (11-OH-Δ9-THC), 11-nor-9-carboxy-Δ9-tetrahydrocannabinol (Δ9-THCCOOH), tetrahydrocannabivarin (THCV), cannabidivarin (CBDV), cannabidiorcol (CBD-C1), cannabichromene (CBC), cannabinol (CBN) and cannabigerol (CBG) in oral fluid. Baseline separation was achieved in the entire quantitation range between Δ9-THC and its isomer Δ8-THC. The quantitation range of Δ9-THC, Δ8-THC, and CBD was from 0.1 ng/mL to 800 ng/mL. Two hundred human subject oral fluid samples were analyzed with this method after solid phase extraction (SPE). Among the 200 human subject oral fluid samples, all 13 cannabinoid analytes were confirmed in at least one sample. Δ8-THC was confirmed in 11 samples, with or without the present of Δ9-THC. A high concentration of 11-OH-Δ9-THC or Δ9-THCCOOH (>400 ng/mL) was confirmed in three samples. CBD, Δ9-THCA-A, THCV, CBN, and CBG were confirmed in 74, 39, 44, 107, and 112 of the 179 confirmed Δ9-THC positive samples, respectively. The quantitation of multiple cannabinoids and metabolites in oral fluid simultaneously provides valuable information for revealing cannabinoid consumption and interpreting cannabinoid-induced driving impairment.
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Affiliation(s)
- Lin Lin
- Forensic Fluids Laboratories, 225 Parson Street, Kalamazoo, MI 49009, USA
| | | | - Jerome Reed
- Forensic Fluids Laboratories, 225 Parson Street, Kalamazoo, MI 49009, USA
| | - Pornkamol Huang
- Forensic Fluids Laboratories, 225 Parson Street, Kalamazoo, MI 49009, USA
| | | | - Dave Lemberg
- Forensic Fluids Laboratories, 225 Parson Street, Kalamazoo, MI 49009, USA
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Meehan-Atrash J, Luo W, McWhirter KJ, Strongin RM. Aerosol Gas-Phase Components from Cannabis E-Cigarettes and Dabbing: Mechanistic Insight and Quantitative Risk Analysis. ACS OMEGA 2019; 4:16111-16120. [PMID: 31592479 PMCID: PMC6777088 DOI: 10.1021/acsomega.9b02301] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 08/30/2019] [Indexed: 05/25/2023]
Abstract
Consumption of cannabis by nontraditional methods has surged since the advent of legalization in North America and worldwide. Inhaling cannabis extracts using vaporizers and via dabbing has risen in popularity, while concerns over product safety have not hindered their proliferation. The work herein is the first step toward assessing the safety of vaporizing and dabbing concentrated cannabis extracts as a function of gas-phase reaction products. The gas-phase thermal degradants of Δ9-tetrahydrocannabinol (THC) have not been previously investigated. It was found that users may be exposed to concerning degradants such as methacrolein, benzene, and methyl vinyl ketone when using cartridge vaporizers and dabbing. It was shown that THC alone and mixed with terpenes generated similar degradation products and, most notably, elevated levels of isoprene. Importantly, it was shown that added terpenes led to higher levels of gas-phase products compared to THC alone. To estimate cancer and noncancer risks associated with exposure to these and other degradants, quantitative risk assessment was applied to experimentally determined values for dabbing and vaping and literature-sourced levels of hazardous components in cannabis smoke. Overall, gas-phase aerosol products had significantly lower values in dabbing and vaporizing compared to cannabis smoking, although these results should be interpreted in light of potential variations in degradant levels due to disparate usage patterns and the dangers of the higher aerosol concentration of THC.
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Affiliation(s)
- Jiries Meehan-Atrash
- Department
of Chemistry and Department of Civil and Environmental Engineering, Portland State University, Portland, Oregon 97207-0751, United States
| | - Wentai Luo
- Department
of Chemistry and Department of Civil and Environmental Engineering, Portland State University, Portland, Oregon 97207-0751, United States
| | - Kevin J. McWhirter
- Department
of Chemistry and Department of Civil and Environmental Engineering, Portland State University, Portland, Oregon 97207-0751, United States
| | - Robert M. Strongin
- Department
of Chemistry and Department of Civil and Environmental Engineering, Portland State University, Portland, Oregon 97207-0751, United States
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Hanisch S, Paulke A, Toennes SW. Investigation of a recently detected THCCOOH isomer: Post mortem findings and comparison with Δ8-THCCOOH. Forensic Sci Int 2015; 257:252-256. [DOI: 10.1016/j.forsciint.2015.09.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Revised: 08/30/2015] [Accepted: 09/04/2015] [Indexed: 11/17/2022]
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Kim SY, Kim JY, Kwon W, In MK, Kim YE, Paeng KJ. Method development for simultaneous determination of amphetamine type stimulants and cannabinoids in urine using GC–MS. Microchem J 2013. [DOI: 10.1016/j.microc.2013.04.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Andrews R, Paterson S. Production of identical retention times and mass spectra for {delta}9-tetrahydrocannabinol and cannabidiol following derivatization with trifluoracetic anhydride with 1,1,1,3,3,3-hexafluoroisopropanol*. J Anal Toxicol 2012; 36:61-5. [PMID: 22290754 DOI: 10.1093/jat/bkr017] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The use of perfluorinated anhydrides coupled with perfluoroalcohols for the derivatization of cannabinoids has been well documented. Derivatization is used in the detection of cannabinoids using gas chromatography-mass spectrometry (GC-MS) with both electron impact ionization (EI) and negative chemical ionization (NCI). During method development for the analysis of cannabinoids in biological samples using GC-MS in EI and NCI mode, it was observed that when Δ(9)-tetrahydrocannabinol (THC) and cannabidiol (CBD) were derivatized with trifluoroacetic anhydride (TFAA), the resultant derivatives produced the same retention times and mass spectra. This was not observed with the trimethylsilyl (TMS) derivatives of THC and CBD. This complication is due to the conversion of CBD to THC under acidic conditions. The work here highlights the unsuitability of the derivatizing reagent TFAA for the detection of THC and CBD. For the analysis of case samples, even if only THC is of interest, the presence of CBD cannot be excluded, and other derivatization techniques should be used.
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Affiliation(s)
- Rebecca Andrews
- Toxicology Unit, Imperial College London, London, United Kingdom.
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Affiliation(s)
- T. A. Brettell
- Department of Chemical and Physical Sciences, Cedar Crest College, 100 College Drive, Allentown, Pennsylvania 18104-6196
| | - J. M. Butler
- Biochemical Science Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899-8312
| | - J. R. Almirall
- Department of Chemistry and Biochemistry and International Forensic Research Institute, Florida International University, University Park, Miami, Florida 33199
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