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Cannabinoids were identified by comparing their retention time and UV spectrum with those of authentic samples and by performing a library search in the Pragst, Herzler, Herre, Erxleben and Rothe 2001/2007 UV-Vis databases

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Thus, the present investigation aimed to extract NCT from different positions (lower, middle, and upper) of tobacco leaves (Figure 1) by maceration and acid-base extraction methods and determine the NCT content in the extracts

3 Absorption of Nicotine Nicotine is distilled from burning tobacco and carried proximally on tar droplets (also called particulate matter), which are inhaled