State of the art of CPMAS 13C-NMR spectroscopy applied to natural organic matter

被引：153

作者：

Conte, P ^{[1
]}

Spaccini, R ^{[1
]}

Piccolo, A ^{[1
]}

机构：

[1] Univ Naples Federico II, Suolo Pianta & Ambiente, Dipartimento Sci, I-80055 Portici, Na, Italy

来源：

PROGRESS IN NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY | 2004年 / 44卷 / 3-4期

关键词：

natural organic matter; nuclear magnetic resonance; cross-polarization magic angle spinning; carbon-13;

D O I：

10.1016/j.pnmrs.2004.02.002

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The structural and conformational characteristics of humic carbon backbones were studied using NMR spectroscopy. Cross-polarized spectroscopy was used to investigate the composition of purified humic substances. High spin rate was obtained by reducing the size of rotors. Protons irradiation eliminated the heteronuclear dipolar interactions. It was found that the NMR signals were reduced due to the mobility of humic material inside the rotors.

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页码：215 / 223

页数：9

相关论文

共 77 条

[1] The nature of soil organic matter affects sorption of pesticides.: 1.: Relationships with carbon chemistry as determined by 13C CPMAS NMR spectroscopy [J].

Ahmad, R ;

Kookana, RS ;

Alston, AM ;

Skjemstad, JO .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2001, 35 (05) :878-884

[2] Effects of paramagnetic cations on the nonexponential spin-lattice relaxation of rare spin nuclei in solids [J].

Alaimo, MH ;

Roberts, JE .

SOLID STATE NUCLEAR MAGNETIC RESONANCE, 1997, 8 (04) :241-250

[3] Distribution of structural units in humic substances as revealed by multi-step selective degradations and 13C-NMR of successive residues [J].

Almendros, G ;

Guadalix, ME ;

Gonzalez-Vila, FJ ;

Martin, F .

SOIL BIOLOGY & BIOCHEMISTRY, 1998, 30 (06) :755-765

[4] 13C NMR assessment of decomposition patterns during composting of forest and shrub biomass [J].

Almendros, G ;

Dorado, J ;

González-Vila, FJ ;

Blanco, MJ ;

Lankes, U .

SOIL BIOLOGY & BIOCHEMISTRY, 2000, 32 (06) :793-804

[5] Sideband manipulation in magic-angle-spinning nuclear magnetic resonance [J].

Antzutkin, ON .

PROGRESS IN NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY, 1999, 35 (03) :203-266

[6] Assessing the extent of decomposition of natural organic materials using solid-state C-13 NMR spectroscopy [J].

Baldock, JA ;

Oades, JM ;

Nelson, PN ;

Skene, TM ;

Golchin, A ;

Clarke, P .

AUSTRALIAN JOURNAL OF SOIL RESEARCH, 1997, 35 (05) :1061-1083

[7] HIGH-RESOLUTION C-13 NMR-STUDY OF SOLID PI-PI MOLECULAR-COMPLEXES USING MAGIC ANGLE SPINNING TECHNIQUES [J].

BLANN, WG ;

FYFE, CA ;

LYERLA, JR ;

YANNONI, CS .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1981, 103 (14) :4030-4033

[8] Heating of samples induced by fast magic-angle spinning [J].

Brus, J .

SOLID STATE NUCLEAR MAGNETIC RESONANCE, 2000, 16 (03) :151-160

[9] Structural components of humic acids as determined by chemical modifications and carbon-13 NMR, pyrolysis-, and thermochemolysis-gas chromatography/mass spectrometry [J].

Chefetz, B ;

Salloum, MJ ;

Deshmukh, AP ;

Hatcher, PG .

SOIL SCIENCE SOCIETY OF AMERICA JOURNAL, 2002, 66 (04) :1159-1171

[10] Quantitative differences in evaluating soil humic substances by liquid-and solid-state 13C-NMR spectroscopy [J].

Conte, P ;

Piccolo, A ;

van Lagen, B ;

Buurman, P ;

de Jager, PA .

GEODERMA, 1997, 80 (3-4) :339-352

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