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机译:Advanced CPMAS-C-13 NMR techniques for molecular characterization of size-separated fractions from a soil humic acid
Univ Naples Federico II, Dipartimento Sci Suolo Pianta & Ambiente, I-80055 Portici, Italy;
CPMAS C-13 NMR; HPSEC; humic substances; size fractions; supramolecular associations; variable contact time (VCT); NATURAL ORGANIC-MATTER; SOLID-STATE NMR; NUCLEAR-MAGNETIC-RESONANCE; C-13-NMR SPECTROSCOPY; CROSS POLARIZATION; MASS-SPECTROMETRY; SUBSTANCES; IONIZATION; SPECTRA; HETEROGENEITY;