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. Author manuscript; available in PMC: 2017 Nov 28.
Published in final edited form as: Food Chem Toxicol. 2015 Apr 28;82:50–58. doi: 10.1016/j.fct.2015.04.016

Table 1.

Levels of pH, un-ionized nicotine (%), moisture (%), total nicotine and un-ionized nicotine (mg/g) in rapé samples.

Product pH1 % Un-ionized Nicotine Moisture
(%)1
Total Nicotine1
(wet, mg/g)
Un-ionized Nicotine2
(wet, mg/g)
Total Nicotine
(dry, mg/g)
Total Nicotine
(dry, %)
Rapé (manufactured, non-tobacco)
Rapé Cacitral 5.71 n.a. 7.65 <LOD n.a. n.a. n.a.
Rapé Guarany Cristal 5.93 n.a. 5.77 <LOD n.a. n.a. n.a.

Rapé (manufactured, tobacco-containing)
Rapé Guarany Especial 5.63 0.40 5.85 6.32 0.03 6.72 0.67
Rapé Guarany Especial (Canela) 5.73 0.52 6.66 6.72 0.03 7.20 0.72
Rapé Guarany Cravo 5.34 0.21 9.46 15.0 0.03 16.6 1.66
Rapé Moeda Especial 5.17 0.14 7.21 20.7 0.03 22.4 2.24
Rapé Caratinga Mentolado 6.42 2.46 5.56 21.6 0.53 22.9 2.29
Rapé Caratinga Imburana 6.23 1.59 6.15 24.2 0.39 25.8 2.58
Rapé Araçá Cravo e Canela 5.83 0.64 5.61 31.1 0.20 33.0 3.30
Rapé Moeda Girassol 5.78 0.57 6.21 32.7 0.19 34.8 3.48
Rapé Real (flavored) 5.91 0.77 5.80 44.7 0.34 47.5 4.75
Rapé Real (unflavored)3 5.98 0.91 6.51 47.6 0.43 50.9 5.09

Rapé (custom-made, tobacco-containing)
Rapé Kaxinawá 9.75 98.2 4.91 18.9 18.5 18.5 1.85
Rapé Nu-nu 10.2 99.3 3.68 15.5 15.4 15.4 1.54

Minimum Detected (tobacco-containing) 5.17 0.14 3.68 6.32 0.03 6.72 0.67
Maximum Detected (tobacco-containing) 10.2 99.3 9.46 47.6 18.5 50.9 5.09
1

Measurements were made in triplicate except for pH and % moisture (n=2).

2

Total and un-ionzied nicotine was calculated using measured pH and total nicotine values. The % un-ionized is calculated using the Henderson-Hasselbalch equation.

3

Based on nicotine values, FT/IR and GC/MS full scan analyses, Rapé Real (unflavored) was determined to be essentially pure Nicotiana rustica tobacco with no other discernable flavorings or plant material added.