Journal of Environmental Analytical Chemistry

Catherine FM Clewett

Publications

• Research Article
  Structural characterization of Humic Materials Using 13C Nuclear Magnetic Resonance Techniques: A Comparison of Solution and Solid-State Methods
  Author(s): Catherine FM Clewett, Todd M Alam, Eric S Osantowski and Michael J PullinCatherine FM Clewett, Todd M Alam, Eric S Osantowski and Michael J Pullin
  
  The analysis of carbon type distribution and chemical structure of natural organic matter (NOM) by 13C NMR spectroscopy is important for understanding its origins and reactivity. While prior work has used solution-state NMR, solid-state NMR has the potential to provide this information with less instrument time and sample processing, while providing an array of advanced filtering techniques. Quantitative and qualitative analyses with 13C solid-state magic angle spinning (MAS) NMR techniques are described for three commercially available samples and one fulvic acid sample isolated from the Rio Grande in New Mexico. This study demonstrates the utility of solid-state 13C NMR for aquatic NOM structural characterization by determining the % carbon type for three standard natural organic materials and comparing these results to the existing solution-state 13C NMR determinations. The solid-s.. Read More»
  DOI: 10.4172/2380-2391.1000121

  Abstract PDF