## 2 Results and Discussion
### Partial Least Square Discriminant Analysis
** & **Class** & **Calibration Curve** & \multicolumn{3}{c}{**Linear**} & \multicolumn{3}{c}{**Concentration (ngL.FW)**} \\  & & & & & & & & & & & \\  & & & Value & Range (ngL) & **Control** & **UV1-A** & **UV1-B** & **UV2-A** & **UV2-B** & **UV3-A** & **UV3-B** \\ \hline
22 & _c_-Thenylamine & y =0.2012\(\times\) + 0.0012 & 09960 & 0.1-0.0 & **v** & **v** & **v** & **v** & **v** & **v** \\
23 & _b_-Dumsonence & y =0.2377\(\times\) (\(7\)\({}^{\circ}\) 10\({}^{\circ}\)) & 0.9652 & 0.1-10 & 0.40 \(\times\) 0.033 & 0.28 \(\pm\) 0.011c & 0.21 \(\pm\) 0.014 & 0.31 \(\pm\) 0.023c & 0.35 \(\pm\) 0.030b & 0.26 \(\pm\) 0.016c & 0.26 \(\pm\) 0.016c \\
24 & Germylacetacet & y =0.2036\(\times\) 0.0007 & 0.9965 & 0.1-20 & 1.92 \(\pm\) 0.15a & 1.95 \(\pm\) 0.18a & 2.25 \(\pm\) 0.23a & 1.85 \(\pm\) 0.23a & 1.81 \(\pm\) 0.17b & 1.15 \(\pm\) 0.016 \\
25 & Navlactone & y =0.1002\(\times\) 0.0023 & 0.9960 & 1.0-50 & 0.80 \(\pm\) 0.05a & 0.90 \(\pm\) 0.06a & 0.75 \(\pm\) 0.08b & 0.76 \(\pm\) 0.08b & 0.82 \(\pm\) 0.03b & 0.78 \(\pm\) 0.08b & 0.77 \(\pm\) 0.07b \\
26 & _b_-Thenylamine & y =0.1931\(\times\) 0.0002 & 0.9785 & 0.05-10 & 0.09 \(\pm\) 0.001b & **v** & **v** & **v** & **v** & **0.24 \(\pm\) 0.01a & 0.23 \(\pm\) 0.01a \\ \hline Amino acid-derived & & & & & & & & & & \\ \hline \hline \multicolumn{1}{l}{_Betomedi_} & & & & & & & & & & & \\ \hline
27 & Spyne & y =3.7777\(\times\) + 0.0127 & 0.9680 & 1-500 & 53.95 \(\pm\) 3.36d & 182.79 \(\pm\) 5.25a & 206.00 \(\pm\) 4.12a & 99.09 \(\pm\) 5.12c & 140.24 \(\pm\) 3.52b & 133.04 \(\pm\) 2.15b & 96.68 \(\pm\) 2.25c \\
28 & p-Cymere & y =3.0572\(\times\) 0.003 & 0.9612 & 0.1-50 & **v** & **v** & **v** & **v** & **v** & **2.70 \(\pm\) 0.12b & 2.76 \(\pm\) 0.16 \\
29 & Benaldehyde & y =0.1682\(\times\) 0.0036 & 0.9907 & 1-50 & 5.58 \(\pm\) 0.10d & 10.22 \(\pm\) 0.82a & 10.44 \(\pm\) 0.21a & 70.77 \(\pm\) 0.43b & 9.47 \(\pm\) 0.21b & 7.50 \(\pm\) 0.50 & 6.61 \(\pm\) 0.11c \\
30 & 4-Methyl (benaldehyde) & y = 0.1716\(\times\) 0.0003 & 0.9998 & 0.1-10 & **v** & 2.98 \(\pm\) 0.01 & 2.99 \(\pm\) 0.01 & 2.83 \(\pm\) 0.01 & 2.89 \(\pm\) 0.01 & 2.89 \(\pm\) 0.01 \\
31 & Benazzutaldehyde & y = 0.3218\(\times\) 0.0026 & 0.9786 & 1-100 & 16.63 \(\pm\) 1.23b & 19.29 \(\pm\) 0.82a & 205.5 \(\pm\) 2.22b & 191.5 \(\pm\) 1.21a & 19.60 \(\pm\) 0.56a & 16.67 \(\pm\) 0.34b & 16.89 \(\pm\) 0.78b \\
32 & Acetophenone & y = 0.7011\(\times\) 0.0133 & 0.9814 & 1-50 & 13.05 \(\pm\) 0.97b & 15.16 \(\pm\) 1.01a & 15.02 \(\pm\) 1.71b & 13.67 \(\pm\) 1.11b & 14.44 \(\pm\) 1.38a & 142.4 \(\pm\) 1.02a & 13.90 \(\pm\) 1.27a \\
33 & Ethyl benzoate & y = 0.0793\(\times\) 0.0016 & 0.9927 & 0.1-20 & **v** & 1.64 \(\pm\) 0.25 & 1.65 \(\pm\) 0.34 & 0.81 \(\pm\) 0.05 & 1.63 \(\pm\) 0.03 & 1.63 \(\pm\) 0.14 & 1.62 \(\pm\) 0.08 \\
34 & 3-Ethyl benzoate & y = 0.1958\(\times\) (\(7\)\({}^{\circ}\) 10\({}^{\circ}\)) & 0.9640 & 0.1-20 & **v** & **v** & **v** & **v** & **v** & **2.77 \(\pm\) 0.01 & 2.75 \(\pm\) 0.01 \\
35 & 1-(4.4486)(byl)(byl)-enhance & y = 0.9468\(\times\) 0.0075 & 0.9897 & 0.1-50 & **v** & 2.61 \(\pm\) 0.15b & 2.61 \(\pm\) 0.10 & **v** & **v** & **2.61 \(\pm\) 0.04 & 2.66 \(\pm\) 0.01 \\
36 & Naphthalene & y = 0.1716\(\times\) 0.0197 & 0.9849 & 0.1-100 & 1.65 \(\pm\) 0.13a & 1.75 \(\pm\) 0.12a & 1.59 \(\pm\) 0.10a & 1.23 \(\pm\) 0.12c & 1.34 \(\pm\) 0.10b & 1.37 \(\pm\) 0.10b & 1.44 \(\pm\) 0.10b \\
37 & Methyl salicylate & y = 0.1535\(\times\) 0.005 & 0.9916 & 0.1-40 & 15.05 \(\pm\) 0.06a & 15.13 \(\pm\) 0.42a & 15.08 \(\pm\) 0.21a & 15.05 \(\pm\) 0.29a & 15.2 \(\pm\) 0.37a & 15.07 \(\pm\) 0.23a & 15.05 \(\pm\) 0.21a \\
38 & n-Phenylethanol & y = 4.9178\(\times\) 0.0146 & 0.9984 & 0.1-40 & 1.69 \(\pm\) 0.12a & 1.54 \(\pm\) 0.13a & 1.07 \(\pm\) 0.08c & 1.30 \(\pm\) 0.05b & 1.08 \(\pm\) 0.05c & 0.85 \(\pm\) 0.064 & 1.00 \(\pm\) 0.10d \\
39 & 3,4-Diered/binealdehyde & y = 0.4274\(\times\) 0.0027 & 0.9697 & 0.1-100 & 27.31 \(\pm\) 1.52a & 24.93 \(\pm\) 1.84b & 26.01 \(\pm\) 1.56a & 23.12 \(\pm\) 2.52b & 23.49 \(\pm\) 1.23b & 25.12 \(\pm\) 2.43 ab & 23.49 \(\pm\) 1.57b \\
40 & Guaaaol & y = 1.2274\(\times\) 0.0008 & 0.9916 & 0.05-50 & **v** & 3.17 \(\pm\  
\begin{table}
\begin{tabular}{l l l l l l l l l l l l l} \hline \hline \multicolumn{1}{c}{**No.