Fig. 7 Solid-state CP/MAS 15N nuclear magnetic resonance (NMR) spectra of International Humic Substance Society Pahokee peat and peat humic acid (HA) reacted with Na15NO2. LB is line broadening in hertz
Fig. 7 Solid-state CP/MAS 15N nuclear magnetic resonance (NMR) spectra of International Humic Substance Society Pahokee peat and peat humic acid (HA) reacted with Na15NO2. LB is line broadening in hertz