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Characterization of soil organic matter with high-speed CPMAS-MNT-spectroscopy

Characterization of soil organic matter with high-speed CPMAS-MNT-spectroscopy

Humic substances in the global environment and implications on human health: proceedings of the 6th International Meeting of the International Humic Substances Society, Monopoli Bari, Italy, September 20-25, 1992: 161-166

Nineteen soils and 5 NaOH-extracts were measured at 4 kHz and 2.3 Tesla and 15 kHz and 7 Tesla under 13C-CPMAS-NMR conditions. For the high field spectra a reduced signal overlap and a improved resolution was detected. The comparison of both methods leads to the conclusion that CP high-speed magic angle spinning introduces intensity distortions.

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