Non-destructive determination of 40K in Marijuana and the effective radiation dose to the body |
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| Johann Antoine, Charles Grant |
- Abstract:
- Total potassium (0.84 % to 3.15 %; mean of 1.93 %.) in marijuana buds was determined from the 41K (n, γ) 42K capture reaction by instrumental neutron activation analysis. The mass fraction of 40K was derived using the natural isotopic ratios and the activity equation A = λ N used to calculate the activity concentration of 40K (253 to 946 Bq kg-1, mean of 581 Bq kg-1). Simulated smoking experiments show that over 90% of 40K is retained in the cigarette ash. Accepted methods of determining effective dose to the body from 40K inhalation are likely overestimations for both marijuana and tobacco cigarette smoke.
- Keywords:
- potassium-40, neutron activation analysis, radiation dose, marijuana, Jamaica
- Download:
- IMEKO-TC19-2017-007.pdf
- DOI:
- -
- Event details
- IMEKO TC:
- TC19
- Event name:
- TC19 Symposium: Metrology on Environmental Instrumentation and Measurements
- Title:
7th EnvIMEKO "Nano systems & analytical nuclear measurements for pollution detection, energy sourcing, bio-sports functionalities, environment/human health and sustainable aggro-biotechnology"
- Place:
- Aguascalientes, MEXICO
- Time:
- 03 August 2017 - 04 August 2017