Figure 2From: Reduced complexity of multidimensional and diffusion NMR spectra of soil humic fractions as simplified by Humeomics1H- 1H COSY and 1H- 13C HSQC spectra of RES4. 1H-1H COSY (A, aliphatic and hydroxyalkyl region; B, aromatic region) and 1H-13C HSQC (C) spectra of RES4. Rectangular regions in HSQC correspond to the following sets of proton signals: Alkyl CHn (1); CHC = O (2); CHn-X where X = electron-withdrawing group (3).Back to article page