In this investigation about 900 saliva samples, collected from drivers not suspected to be under the influence of drugs or alcohol were screened by Cozarts "Drugs of Abuse Microplate EIA" for benzodiazepines, amphetamine, cannabis, cocaine/benzoylecgonine and opiates. The screening only includes few of the benzodiazepines on the market in Denmark, which means, that only a part of the saliva samples positive for benzodiazepines will be detected by the screening, and that the number of positive benzodiazepine samples will be underestimated. All the saliva samples positive for drugs by the screening were analysed by specific methods, mostly gaschromatography-mass spectrometry (GC-MS). Totally 2% of the investigated saliva samples were positive for drugs. 0.7% (6) of the investigated saliva samples were positive for benzodiazepines, 0.8% (7) for cannabis (tetrahydrocannabinol-THC), 0.3% (3) for opiates, 0.1 % (1) for amphetamine and 0.1% (1) for cocaine/benzoylecgonine. An evaluation of the importance of the saliva concentration will be described. (Author/publisher) For the covering abstract of the conference see ITRD Abstract No. E201067.
Abstract