Difference between revisions of "Template:Past, Present, and Future of Cannabis Laboratory Testing and Regulation in the United States/Laboratory testing of cannabis/Methods and guidelines/Sampling"

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Random, representative sampling is encouraged. When dealing with solid cannabis, BOTEC Analysis recommends a "quartering" method that divides the sample into four equal parts and takes portions from opposite sections of a square-shaped arrangement of the sample. For liquid cannabis products, remembering to stir before sample collection is advised.<ref name="APHLGuide16">{{cite web |url=https://www.aphl.org/aboutAPHL/publications/Documents/EH-Guide-State-Med-Cannabis-052016.pdf |format=PDF |title=Guidance for State Medical Cannabis Testing Programs |author=Association of Public Health Laboratories |pages=35 |date=May 2016 |accessdate=01 February 2017}}</ref> When deriving a sample from a cannabis-laden edible, the [[Quechers|QuEChERS]] approach used by food safety labs for pesticide testing has practical use.<ref name="RigdonExtract16">{{cite web |url=http://blog.restek.com/?p=25790 |title=Extraction Method for Cannabinoid Analysis in Edibles: Too Much of a Good Thing |author=Rigdon, A. |work=ChromaBLOGraphy |publisher=Restek Corporation |date=12 May 2016 |accessdate=16 February 2017}}</ref> In fact, a variety of parallels have been drawn from the food and herbal medicine industries' sampling guidelines, including from the Codex Alimentarius Commission's ''CAC/GL 50-2004 General Guidelines on Sampling'' as well as various chapters of the ''[[United States Pharmacopeia|United States Pharmacopeia and The National Formulary]]''.<ref name="APHLGuide16" /><ref name="CACGL50-2004">{{cite web |url=http://www.fao.org/fao-who-codexalimentarius/sh-proxy/en/?lnk=1&url=https%253A%252F%252Fworkspace.fao.org%252Fsites%252Fcodex%252FStandards%252FCAC%2BGL%2B50-2004%252FCXG_050e.pdf |format=PDF |author=Codex Alimentarius Commission |title=CAC/GL 50-2004 General Guidelines on Sampling |pages=69 |accessdate=15 February 2017}}</ref> As the Association of Public Health Laboratories (APHL) points out, "[g]ood sampling is key to improving analytical data equivalency among organizations," and it provides a solid base for any future testing and standardization efforts.<ref name="APHLGuide16" />  
Random, representative sampling is encouraged. When dealing with solid cannabis, BOTEC Analysis recommends a "quartering" method that divides the sample into four equal parts and takes portions from opposite sections of a square-shaped arrangement of the sample. For liquid cannabis products, remembering to stir before sample collection is advised.<ref name="APHLGuide16">{{cite web |url=https://www.aphl.org/aboutAPHL/publications/Documents/EH-Guide-State-Med-Cannabis-052016.pdf |format=PDF |title=Guidance for State Medical Cannabis Testing Programs |author=Association of Public Health Laboratories |pages=35 |date=May 2016 |accessdate=07 July 2021}}</ref> When deriving a sample from a cannabis-laden edible, the [[Quechers|QuEChERS]] approach used by food safety labs for pesticide testing has practical use.<ref name="RigdonExtract16">{{cite web |url=http://blog.restek.com/?p=25790 |archiveurl=https://web.archive.org/web/20170919014255/http://blog.restek.com/?p=25790 |title=Extraction Method for Cannabinoid Analysis in Edibles: Too Much of a Good Thing |author=Rigdon, A. |work=ChromaBLOGraphy |publisher=Restek Corporation |date=12 May 2016 |archivedate=19 September 2017 |accessdate=07 July 2021}}</ref> In fact, a variety of parallels have been drawn from the food and herbal medicine industries' sampling guidelines, including from the Codex Alimentarius Commission's ''CAC/GL 50-2004 General Guidelines on Sampling'' as well as various chapters of the ''[[United States Pharmacopeia|United States Pharmacopeia and The National Formulary]]''.<ref name="APHLGuide16" /><ref name="CACGL50-2004">{{cite web |url=http://www.fao.org/fao-who-codexalimentarius/sh-proxy/en/?lnk=1&url=https%253A%252F%252Fworkspace.fao.org%252Fsites%252Fcodex%252FStandards%252FCAC%2BGL%2B50-2004%252FCXG_050e.pdf |archiveurl=https://web.archive.org/web/20190428175411/http://www.fao.org/fao-who-codexalimentarius/sh-proxy/en/?lnk=1&url=https%253A%252F%252Fworkspace.fao.org%252Fsites%252Fcodex%252FStandards%252FCAC%2BGL%2B50-2004%252FCXG_050e.pdf |format=PDF |author=Codex Alimentarius Commission |title=CAC/GL 50-2004 General Guidelines on Sampling |pages=69 |archivedate=28 April 2019 |accessdate=07 July 2021}}</ref> As the Association of Public Health Laboratories (APHL) points out, "[g]ood sampling is key to improving analytical data equivalency among organizations," and it provides a solid base for any future testing and standardization efforts.<ref name="APHLGuide16" />  


Additional sampling insight can be found by examining other states' guidelines, e.g., Massachusetts' ''Protocol for Sampling and Analysis of Finished Medical Marijuana Products and Marijuana-Infused Products for Massachusetts Registered Medical Marijuana Dispensaries''.<ref name="DPHMassProto16">{{cite web |url=http://www.mass.gov/eohhs/docs/dph/quality/medical-marijuana/lab-protocols/finished-mmj/final-revised-mdph-mmj-mips-protocol.pdf |format=PDF |title=Protocol for Sampling and Analysis of Finished Medical Marijuana Products and Marijuana-Infused Products for Massachusetts Registered Medical Marijuana Dispensaries |author=Bureau of Health Care Safety and Quality |publisher=Massachusetts Department of Public Health |pages=25 |date=05 February 2016 |accessdate=17 February 2017}}</ref>
Additional sampling insight can be found by examining other states' guidelines, e.g., Massachusetts' ''Protocol for Sampling and Analysis of Finished Medical Marijuana Products and Marijuana-Infused Products for Massachusetts Registered Medical Marijuana Dispensaries''.<ref name="DPHMassProto16">{{cite web |url=http://www.mass.gov/eohhs/docs/dph/quality/medical-marijuana/lab-protocols/finished-mmj/final-revised-mdph-mmj-mips-protocol.pdf |archiveurl=https://web.archive.org/web/20170908014040/http://www.mass.gov/eohhs/docs/dph/quality/medical-marijuana/lab-protocols/finished-mmj/final-revised-mdph-mmj-mips-protocol.pdf |format=PDF |title=Protocol for Sampling and Analysis of Finished Medical Marijuana Products and Marijuana-Infused Products for Massachusetts Registered Medical Marijuana Dispensaries |author=Bureau of Health Care Safety and Quality |publisher=Massachusetts Department of Public Health |pages=25 |date=05 February 2016 |archivedate=08 September 2017 |accessdate=07 July 2021}}</ref>

Revision as of 19:28, 7 July 2021

Random, representative sampling is encouraged. When dealing with solid cannabis, BOTEC Analysis recommends a "quartering" method that divides the sample into four equal parts and takes portions from opposite sections of a square-shaped arrangement of the sample. For liquid cannabis products, remembering to stir before sample collection is advised.[1] When deriving a sample from a cannabis-laden edible, the QuEChERS approach used by food safety labs for pesticide testing has practical use.[2] In fact, a variety of parallels have been drawn from the food and herbal medicine industries' sampling guidelines, including from the Codex Alimentarius Commission's CAC/GL 50-2004 General Guidelines on Sampling as well as various chapters of the United States Pharmacopeia and The National Formulary.[1][3] As the Association of Public Health Laboratories (APHL) points out, "[g]ood sampling is key to improving analytical data equivalency among organizations," and it provides a solid base for any future testing and standardization efforts.[1]

Additional sampling insight can be found by examining other states' guidelines, e.g., Massachusetts' Protocol for Sampling and Analysis of Finished Medical Marijuana Products and Marijuana-Infused Products for Massachusetts Registered Medical Marijuana Dispensaries.[4]

  1. ↑ 1.0 1.1 1.2 Association of Public Health Laboratories (May 2016). "Guidance for State Medical Cannabis Testing Programs" (PDF). pp. 35. https://www.aphl.org/aboutAPHL/publications/Documents/EH-Guide-State-Med-Cannabis-052016.pdf. Retrieved 07 July 2021. 
  2. ↑ Rigdon, A. (12 May 2016). "Extraction Method for Cannabinoid Analysis in Edibles: Too Much of a Good Thing". ChromaBLOGraphy. Restek Corporation. Archived from the original on 19 September 2017. https://web.archive.org/web/20170919014255/http://blog.restek.com/?p=25790. Retrieved 07 July 2021. 
  3. ↑ Codex Alimentarius Commission. "CAC/GL 50-2004 General Guidelines on Sampling" (PDF). pp. 69. Archived from the original on 28 April 2019. https://web.archive.org/web/20190428175411/http://www.fao.org/fao-who-codexalimentarius/sh-proxy/en/?lnk=1&url=https%253A%252F%252Fworkspace.fao.org%252Fsites%252Fcodex%252FStandards%252FCAC%2BGL%2B50-2004%252FCXG_050e.pdf. Retrieved 07 July 2021. 
  4. ↑ Bureau of Health Care Safety and Quality (5 February 2016). "Protocol for Sampling and Analysis of Finished Medical Marijuana Products and Marijuana-Infused Products for Massachusetts Registered Medical Marijuana Dispensaries" (PDF). Massachusetts Department of Public Health. pp. 25. Archived from the original on 08 September 2017. https://web.archive.org/web/20170908014040/http://www.mass.gov/eohhs/docs/dph/quality/medical-marijuana/lab-protocols/finished-mmj/final-revised-mdph-mmj-mips-protocol.pdf. Retrieved 07 July 2021. 
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