## 3 Results and Discussion
### The Organic Compounds Found in Crops

Table 13: _Cont._  
\begin{table}
\begin{tabular}{c c c c c c c c c} \hline \hline \multicolumn{2}{c}{**Plant**} & \multicolumn{4}{c}{**Plant**} & \multicolumn{4}{c}{**Element Concentration (mg kg\({}^{-1}\)\(\pm\)\(\sigma\))**} \\ \cline{3-8} \multicolumn{2}{c}{**Sample**} & **Species** & **F** & **Na** & **Mg** & **A1** & **Si** & **P** & **Cl** & **Fe** \\ \hline T-2-1 & wheat & \(270\pm 3\) & 1440 \(\pm 26\) & 8019 \(\pm 632\) & 2850 \(\pm 90\) & 155,000 \(\pm 9800\) & 2070 \(\pm 190\) & \(<\)1300 & 4990 \(\pm 930\) \\ T-2-c & \(<\)16 & \(290\pm 30\) & 4251 \(\pm 1675\) & \(<\)140 & \(<\)15,800 & 2290 \(\pm 290\) & n.d. & \(<\)4280 \\ T-3-1 & \(23^{\circ}\pm 4\) & 1156 \(\pm 30\) & 8249 \(\pm 866\) & 2548 \(\pm 100\) & 110190 \(\pm\) 2784 & 2234 \(\pm 174\) & \(<\)1205 & 5463 \(\pm 1012\) \\ T-3-c & \(<\)0 & \(<\)10 & \(<\)2222 & \(<\)78 & \(<\)9022 & 2287 \(\pm\) 293 & n.d. & \(3871\pm 1382\) \\ T-4-1 & \(30\pm 5\) & \(616\pm 28\) & 21,802 \(\pm 1859\) & 2530 \(\pm 98\) & 122,881 \(\pm 7820\) & 6436 \(\pm 300\) & \(<\)1215 & 6302 \(\pm 1289\) \\ T-4-c & \(\mathrm{com}\) & \(10\pm 4\) & \(\pm 21\) & \(\pm 4814\) & \(<\)460 \(\pm 74\) & \(<\)8634 & 3438 \(\pm 264\) & n.d. & \(<\)2418 \\ T-5-1 & sunflower & \(9\pm 3\) & 241 \(\pm 16\) & 66761 \(\pm 3379\) & 1159 \(\pm 73\) & 22,276 \(\pm\) 3640 & 6682 \(\pm\) 305 & 5472 \(\pm\) 1094 \\ T-6-1 & sunflower & \(15\pm 3\) & 228 \(\pm 13\) & 30,532 \(\pm\) 2015 & 855 \(\pm\) 62 & 35,195 \(\pm\) 4448 & 4629 \(\pm\) 263 & 3071 \(\pm\) 703 & 4879 \(\pm\) 1003 \\ S-1 & \(\mathrm{twl}\) & \(18\pm 3\) & 741 \(\pm 30\) & 5043 \(\pm 642\) & 1693 \(\pm\) 76 & 77,847 \(\pm\) 7695 & 695 \(\pm\) 131 & n.d. & \(<\)2109 \\ S-1 & \(\The plant tissues of the analyzed plants were found to contain several functional groups, including alkynes, alcohols, phenols, and amines I and II, identified by intense peaks in the area 3293 cm\({}^{-1}\) and 3273 cm\({}^{-1}\). These peaks are attributed to the stretching vibrations of groups such as \(\equiv\)C-H, -(C)O-H, and -(C)-N-H [103]. The presence of lipids, proteins, carbohydrates, and nucleic acids was also indicated by strong peaks recorded at wave numbers 2918 cm\({}^{-1}\) and 2850 cm\({}^{-1}\), attributed to symmetric and asymmetric vibrations of carboxylic acids (C=O) and alkanes (C-H). References [104; 105; 106] mention these groups at 2959-2852 cm\({}^{-1}\), 2920 cm\({}^{-1}\), and 2852 cm\({}^{-1}\). The wheat leaves exhibited more prominent peaks in comparison to those found in the sunflower leaves spectrum. The stretching vibration of the C=O group in the structure of carboxylic acids, phospholipids, hemicellulose, and pectin [106] was highlighted by the peak at 1733 cm\({}^{-1}\). These compounds were identified in the spectra of analyzed wheat and sunflower leaves at wave numbers 1729 cm\({}^{-1}\) and 1731 cm\({}^{-1}\). These functional groups were also identified in the range of 1760-1680 cm\({}^{-1}\)[105]. In the ATR-FTIR spectra of plant leaves, the absorption bands between 1650 and 1500 cm\({}^{-1}\) range are attributed to the stretching vibrations of primary amines, proteins, lignins, and phenols. The peaks at 1637 cm\({}^{-1}\) (wheat leaf) and 1597 cm\({}^{-1}\) (sunflower leaf) signify the presence of primary amines. Additionally, the absorption band of 1470-1400 cm\({}^{-1}\) range is attributed to the deformation vibration of C-OH and C-H groups found in polysaccharides, alcohols, carboxylic acids, and alkanes. The peaks at 1419 cm\({}^{-1}\) (wheat leaf) and 1403 cm\({}^{-1}\) (sunflower leaf) indicate the presence of these functional groups. Wave number 1317 cm\({}^{-1}\) is attributed to the deformation vibration of the CH group in the cellulose