Coupling NMR to NOM

This work itemizes and critically assesses several 1D and multi-dimensional nuclear magnetic resonance (NMR) techniques, in both the liquid (solvent suppression, APT, DEPT, INEPT, COSY, TOCSY, HSQC, HMQC, HMBC, NOESY, ROESY and others) and solid states (DP, SACP, RAMP-CP, CP-TOSS, MQ-DEPT, 2D ¹H–¹³C HETCOR and others), which are relevant to the characterization of natural organic matter (NOM). The pros and cons of many of the discussed techniques are compared in an effort to provide guidance to the most beneficial utilization of these NMR instrumental techniques for researchers interested in gaining insight into various aspects of NOM.Abbreviations 1D One dimensional - 2D Two dimensional - APT Attached proton test - BIRD Bilinear rotation decoupling - CP Cross polarization - COSY Correlation spectroscopy - CSA Chemical shift anisotropy - DEPT Distortionless enhancement by polarization transfer - DMSO Dimethyl sulfoxide - DOSY Diffusion ordered spectroscopy - DP Direct polarization - DQ Double quantum - FID Free induced decay - FT Fourier transform - FT-ICR-MS Fourier transform-ion cyclotron resonance-mass spectroscopy - HETCOR Heteronuclear correlation - HH Hartmann–Hahn - HMBC Heteronuclear multiple bond correlation - HMQC Heteronuclear multiple quantum coherence - HSQC Heteronuclear single quantum coherence - INEPT Insensitive nuclei enhanced by polarization transfer - LR-COSY Long-range COSY - MAS Magic-angle spinning - MQ Multiple quantum - MS Mass spectroscopy - NMR Nuclear magnetic resonance - NOE Nuclear Overhauser enhancement - NOESY Nuclear Overhauser enhanced spectroscopy - NOM Natural organic matter - PASS Phase adjustment of spinning sidebands - RAMP Ramped amplitude - RESTORE Restoration of spectra via T _CH and T one rho (T _1H) editing - r.f. Radio frequency - ROESY Rotating frame Overhauser enhancement spectroscopy - SACP Single amplitude cross polarization - SOM Soil organic matter - SS Spinning sideband - TMS Tetramethylsilane - TOCSY Total correlation spectroscopy - TOSS Total suppression of sidebands - TPPM Two-pulse phase modulation - VCT Variable contact time - VSL Variable spin lock - WATERGATE Water suppression by gradient tailored excitation