Solid-state NMR in biogeochemistry
Since the development of cross-polarization (CP) and magic angle spinning (MAS) and the subsequent rise of solid-state NMR, the technique has found its way into soil science and is now a well-established characterization method for soil organic matter. It can be used for a large variety of non-destructive applications e.g. relaxation measurements, structure resolution or identification of binding-induced peak shifts.
14.1 T Varian NMR system with an HX probe for 6 mm rotors
(located in a radioactive control area)
Velasco-Molina, M., Berns, A. E., Macías, F., Knicker, H.; Biochemically altered charcoal residues as an important source of soil organic matter in subsoils of fire-affected subtropical regions, Geoderma 2016, 262, 62-70.
Fiedler, S.; Berns, A. E.; Schwark, L.; Woelk, A. T.; Graw, M.; The chemistry of death - Adipocere degradation in modern graveyards, Forensic Sci. Int. 2015, 257, 320-328.
Berns, A. E. & Knicker, H.; Soil Organic Matter, eMagRes 2014, 3, 43-54.
Fernandez-Bayo, J. D.; Saison, C.; Geniez, C.; Voltz, M.; Vereecken, H.; Berns, A. E.; Sorption Characteristics of Chlordecone and Cadusafos in Tropical Agricultural Soils, Curr. Org. Chem. 2013, 17, 2976-2984.
Berns, A. E. & Conte, P.; Effect of ramp size and sample spinning speed on CPMAS 13C NMR spectra of soil organic matter, Org. Geochem. 2011, 42, 926-935.
Berns, A. E. & Conte, P.; Effect of RF field inhomogeneity and sample restriction on spectral resolution of CP/MAS-13C NMR spectra of natural organic matter, Open Magn. Res. J. 2010, 3, 75-83.
Berns, A. E.; Conte, P.; Philipp, H.; Witte, E. G.; Lewandowski, H.; Interactions between 2-aminobenzothiazole and natural organic matter as evidenced by CPMAS 15N-NMR spectroscopy, Vadose Zone J. 2009, 8, 670-676.
Berns, A. E.; Philipp, H.; Narres, H.-D.; Burauel, P.; Vereecken, H.; Tappe, W.; Effect of γ-sterilization and autoclaving on soil organic matter structure as studied by solid state NMR, UV and fluorescence spectroscopy, Eur. J. Soil Sci. 2008, 59, 540-550.
Dr. Anne E. Berns