The determination of the inhalable fraction of 40K activity in marijuana (Cannabis sativa L.) buds by instrumental neutron activation analysis and the effective dose to the body

摘要: Abstract Total potassium in marijuana (Cannabis sativa L.) buds was determined using instrumental neutron activation analysis. The mass fraction of 40K and its activity were derived the natural isotopic ratios potassium. total ranged from 0.84% to 3.15% with a mean 1.93%. concentrations samples 253 946 Bq kg−1 concentration 581 kg−1. effective dose body smoking is lower than that for comparable tobacco smoking. Simulated experiments show over 90% retained cigarette ash. Accepted methods determining inhalation are likely overestimations both smoke.