NMR spectra of soils with different bamboo planting times were shown in Fig.
However, 13C CPMAS
NMR shows that foliar litter is actually rather low in lignin (5-10%), and may contain similar or higher proportions of two other biopolymers, cutin and condensed tannins (CT) .
solid-state NMR was observed with a 500 MHz Varian Innova Spectrometer.
spectrum of PMDI-treated southern pine (not shown) is very similar to that of aspen (shown in Fig.
NMR spectra of bulk soils, particle size fractions and organic material by treatment with 10% hydrofluoric acid.
Relationship with carbon chemistry as determined by 13C CPMAS
NMR experiments and relaxation experiments.
NMR analysis revealed that changes in the relative proportions of carbon from the four spectral regions (alkyl, O-alkyl, aromatic and carboxylic), due to land use at each site, were relatively minor.
Lorenz K, Preston CM, Feger KH (2001) Long-term effects of liming on microbial biomass and activity and soil organic matter quality (C-13 CPMAS
NMR) in organic horizons of Norway spruce forests in Southern Germany.
13] solid-state CPMAS
NMR was used to probe and actually to deny possible phase miscibility and molecular level interaction within the modified PVC, since such effects are not very probable at the polymerization conditions used.
Goncalves CN, Dalmolin RSD, Dick D, Knicker H, Klamt E, Kogel-Knabner I (2003) The effect of 10% HF treatment on the resolution of CPMAS
NMR of the films shows characteristic peaks, which are presented in Fig.