Fig. 2 (A) Tetramethylammonium hydroxide (TMAH) thermochemolysis–gas chromatography/mass spectrometry chromatogram of 15–30 cm soil layer, and (B) 30–45 cm soil layer. For peak identification refer to Table 1
Fig. 2 (A) Tetramethylammonium hydroxide (TMAH) thermochemolysis–gas chromatography/mass spectrometry chromatogram of 15–30 cm soil layer, and (B) 30–45 cm soil layer. For peak identification refer to Table 1