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Tobacco Content (%) is based on a dose-dependent correlation between total nicotine (dry wt.) and tobacco content for rapé samples. Rapé Real (unflavored) was determined to be pure N. rustica (set as 100% tobacco, 50.9 mg/g) based on GC/MS and FT/IR analyses. Non-tobacco containing products with no detectable tobacco (i.e., 0 mg nicotine), including Rapé Cacitral and Rapé Guarany Cristal, and were set as 0% tobacco content in this regression.
