scholarly journals Thermodynamics of Hg(II) Bonding to Thiol Groups in Suwannee River Natural Organic Matter Resolved by Competitive Ligand Exchange, Hg LIII-Edge EXAFS and1H NMR Spectroscopy

2018 ◽  
Vol 52 (15) ◽  
pp. 8292-8301 ◽  
Author(s):  
Yu Song ◽  
Tao Jiang ◽  
Van Liem-Nguyen ◽  
Tobias Sparrman ◽  
Erik Björn ◽  
...  
Keyword(s):  
Organic Matter ◽  
Nmr Spectroscopy ◽  
Natural Organic Matter ◽  
Ligand Exchange ◽  
Thiol Groups ◽  
Suwannee River ◽  
Competitive Ligand Exchange ◽  
Competitive Ligand

scholarly journals Effect of UVC pre-irradiation on the Suwannee river Natural Organic Matter (SRNOM) photoxidant properties

2021 ◽  
pp. 117395
Author(s):  
Davide Palma ◽  
Amina Khaled ◽  
Mohamad Sleiman ◽  
Guillaume Voyard ◽  
Claire Richard
Keyword(s):  
Organic Matter ◽  
Natural Organic Matter ◽  
Suwannee River

Characterization of Natural Organic Matter by Nuclear Magnetic Resonance Spectroscopy

1997 ◽  
Author(s):  
Jerry A. Leenheer
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Organic Matter ◽  
Nmr Spectroscopy ◽  
Magnetic Resonance ◽  
Natural Organic Matter ◽  
Major Elements ◽  
Structure Information ◽  
Abundant Element ◽  
Nuclear Magnetic

Natural organic matter (NOM) is a major intermediate in the global carbon, nitrogen, sulfur, and phosphorus cycles. NOM is also the environmental matrix that frequently controls binding, transport, degradation, and toxicity of many organic and inorganic contaminants. Despite its importance, NOM is poorly understood at the structural chemistry level because of its molecular complexity and heterogeniety. Nuclear magnetic resonance (NMR) spectroscopy is one of the most useful spectrometric methods used to investigate NOM structure because qualitative and quantitative organic structure information for certain organic elements can be generated by NMR for NOM in both the solution and solid states under nondegradative conditions. However, NMR spectroscopy is not as sensitive as infrared or ultraviolet-visible spectroscopy; it is not at present applicable to organic oxygen and sulfur, and quantification of NMR spectra is difficult under certain conditions. The purpose of this overview is to present briefly the “state of the art” of NMR characterization of NOM, and to suggest future directions for NMR research into NOM. More comprehensive texts concerning the practice of NMR spectroscopy and its application to NOM in various environments have been produced by Wilson and by Wershaw and Mikita. Carbon, hydrogen, and oxygen are the major elements of NOM; together they comprise about 90% of the mass. The minor elements that constitute the remainder are nitrogen, sulfur, phosphorus, and trace amounts of the various halogen elements. With the exception of coal, in which carbon is the most abundant element, the order of relative abundance in NOM on an atomic basis is H > C > O > N > S > P = halogens. The optimum NMR-active nuclei for these elements are 1H, 13C, 17O, 15N, 33S, 31P, and 19F. The natural abundances and receptivities of these nuclei relative to 1H are given in Table 12.1. Quadrupolar effects for 17O, 33S, and halogen elements other than 19F lead to line broadening that greatly limits resolution in NMR studies of these elements in NOM.

Photodecomposition of Carbaryl in the Presence of Silver-Doped Zeolite Y and Suwannee River Natural Organic Matter

2003 ◽  
Vol 37 (10) ◽  
pp. 2280-2285 ◽  
Author(s):  
Marsha C. Kanan ◽  
Sofian M. Kanan ◽  
Rachel N. Austin ◽  
Howard H. Patterson
Keyword(s):  
Organic Matter ◽  
Natural Organic Matter ◽  
Zeolite Y ◽  
Suwannee River

scholarly journals Advanced solid-state NMR spectroscopy of natural organic matter

2017 ◽  
Vol 100 ◽  
pp. 17-51 ◽  
Author(s):  
Jingdong Mao ◽  
Xiaoyan Cao ◽  
Dan C. Olk ◽  
Wenying Chu ◽  
Klaus Schmidt-Rohr
Keyword(s):  
Organic Matter ◽  
Solid State ◽  
Nmr Spectroscopy ◽  
Natural Organic Matter ◽  
Solid State Nmr ◽  
Solid State Nmr Spectroscopy
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