## 2 Results and Discussion
### PTR-ToF-MS: Determination of Volatile Compounds from Spices
\begin{table}
\begin{tabular}{c c c c c c c c c c} \hline \hline
**Peak Number** & _m/z_ & **Chemical Formula** & **Tentative Identification** & \multicolumn{3}{c}{**Paprika**} & \multicolumn{3}{c}{**Baklouti**} \\ \cline{3-10}  & & & & & & & & & **\% of the Total** \\ \hline
26 & 83.086 & C\({}_{6}\)H\({}_{11}\)\({}^{*}\) & C\({}_{6}\) compounds/Hexenol fragment & 3.26 & 0.80 & 0.06 & 4.10 & 0.29 & 0.10 \\ \hline
27 & 85.065 & C\({}_{5}\)H\({}_{9}\)O\({}^{*}\) & Methyl-butenal/1-penten-3-one & 4.82 & 1.22 & 0.09 & 6.10 & 1.35 & 0.15 \\
28 & 87.045 & C\({}_{4}\)H\({}_{7}\)O\({}_{2}\)\({}^{*}\) & 2,3-butanedione/diacetyl & 26.21 & 6.84 & 0.50 & 21.45 & 4.58 & 0.53 \\ \hline
29 & 89.059 & C\({}_{4}\)H\({}_{9}\)O\({}_{2}\)\({}^{*}\) & Ethyl acetate & 12.93 & 0.53 & 0.25 & 14.44 & 0.66 & 0.35 \\ \hline
30 & 93.069 & C\({}_{7}\)H\({}_{9}\)\({}^{*}\) & Toluene/terpeng fragments (e.g., \(\circ\)), cyrene, limonene) & 4.23 & 0.22 & 0.08 & 1.41 & 0.73 & 0.03 \\ \hline
31 & 95.049 & C\({}_{6}\)H\({}_{5}\)O\({}^{*}\) & Phenol & 4.61 & 0.58 & 0.09 & 3.83 & 0.11 & 0.09 \\ \hline
32 & 95.086 & C\({}_{7}\)H\({}_{11}\)\({}^{*}\) &
\begin{tabular}{c} 1-Methyl-1,4-cyclohexadiene/terpeng fragments \\ \end{tabular} & 7.25 & 3.07 & 0.14 & 8.11 & 0.07 & 0.20 \\ \hline
33 & 97.064 & C\({}_{6}\)H\({}_{9}\)O\({}^{*}\) & 2-Ethylfuran & 8.25 & 4.41 & 0.16 & 2.94 & 0.05 & 0.07 \\ \hline
34 & 103.075 & C\({}_{5}\)H\({}_{11}\)O\({}_{2}\)\({}^{*}\) & Ethyl3-methylbutanoic acid & 6.80 & 0.45 & 0.13 & 7.77 & 0.22 & 0.19 \\ \hline
35 & 105.069 & C\({}_{8}\)H\({}_{9}\)\({}^{*}\) & Styrol & 5.62 & 1.55 & 0.11 & 4.50 & 1.48 & 0.11 \\ \hline
36 & 107.049 & C\({}_{7}\)H\({}^{\prime}\)O\({}^{*}\) & Benzaldehyde & 6.89 & 0.64 & 0.13 & 1.84 & 0.57 & 0.05 \\ \hline
37 & 107.085 & C\({}_{8}\)H\({}_{11}\)\({}^{*}\) & p-Xylene & 3.99 & 1.21 & 0.08 & 6.38 & 0.07 & 0.16 \\ \hline
38 & 109.064 & C\({}_{7}\)H\({}_{9}\)O\({}^{*}\) & & 39.24 & 8.49 & 0.75 & 19.16 & 3.31 & 0.47 \\ \hline
39 & 109.101 & C\({}_{8}\)H\({}_{13}\)\({}^{*}\) & Terpeng fragments & 27.61 & 9.91 & 0.53 & 12.92 & 4.89 & 0.32 \\ \hline
40 & 111.038 & C\({}_{3}\)H\({}_{11}\)O\({}_{5}\)\({}^{*}\) & S+ compound & 3.98 & 2.06 & 0.08 & 0.00 & 0.00 & 0.00 \\ \hline
41 & 119.085 & C\({}_{9}\)H\({}_{11}\)\({}^{*}\) & Terpeng fragment & 5.34 & 1.39 & 0.10 & 2.63 & 1.33 & 0.06 \\ \hline
42 & 121.101 & C\({}_{9}\)H\({}_{13}\)\({}^{*}\) & Terpeng fragment & 3.87 & 0.59 & 0.07 & 1.89 & 0.75 & 0.05 \\ \hline
43 & 123.117 & C\({}_{9}\)H\({}_{15}\)\({}^{*}\) &
\begin{tabular}{c} Sesquierpene fragments \\ \end{tabular} & 18.67 & 4.01 & 0.36 & 10.30 & 2.30 & 0.25 \\ \hline
44 & 135.117 & C\({}_{10}\)H\({}_{15}\)\({}^{*}\) &
\begin{tabular}{c} P-peng/monoterpene \\ kotone fragment \\ \end{tabular} & 3.99 & 2.10 & 0.08 & 2.38 & 0.10 & 0.06 \\ \hline
45 & 137.132 & C\({}_{10}\)H\({}_{17}\)\({}^{*}\) &
\begin{tabular}{c} Monoterpenes (e.g., \(\circ\) limonene) \\ \end{tabular} & 9.63 & 5.33 & 0.18 & 12.68 & 3.08 & 0.31 \\ \hline
46 & 139.111 & C\({}_{9}\)H\({}_{15}\)O\({}^{*}\) &
\begin{tabular}{c} Nonadenal/2-pentylfuran \\ \end{tabular} & 3.87 & 2.99 & 0.07 & 2.37 & 0.55 & 0.06 \\ \hline
47 & 149.132 & C\({}_{11}\)H\({}_{17}\)\({}^{*}\) &
\begin{tabular}{c} Sesquierpene fragments or \\ eoctapore newborns \\ \end{tabular} & 5.09 & 2.15 & 0.10 & 4.56 & 0.80 & 0.11 \\ \hline
48 & 153.126 & C\({}_{10}\)H\({}_{17}\)O\({}^{*}\) &
\begin{tabular}{c} Terpengid like-compounds \\ (e.g., \(\beta\)-cyclocitral)/(E,E)- \\ 2,4-decadienen \\ \end{tabular} & 5.06 & 2.08 & 0.10 & 4.30 & 0.10 & 0.11 \\ \hline
49 & 205.195 & C\({}_{15}\)H\({}_{25}\)\({}^{*}\) & Sesquierpenes & 15.68 & 4.15 & 0.34 & 17.51 & 3.08 & 0.18 \\ \hline \multicolumn{10}{c}{**Total Emission intensity**} & \multicolumn{3}{c}{5224.07} & 100.00 & 4065.37 & 100.00 \\ \hline \hline \end{tabular}
\end{table} 
Table 2: _Cont._possible to obtain the entire volatile spectrum in real time (including low-molecular-weight compounds) with high sensitivity and high time resolution, although some compounds are ambiguously identified [27; 28; 29].