Dissolved Organic Matter is a mysterious and still largely unidentified combination of substances that is thought to be ...

The 13 C NMR data showed the characteristic signal of C=N group at 162-174 ppm. The other spectroscopic data mass spectroscopy, infrared (MS, IR) were also compatible with respective structures.

We observed four signals related to aromatic hydrogens in the 1 H NMR spectra. The coupling constant of these hydrogens is characteristic of a 1,2-dissubstitute aromatic ring. The 13 C NMR spectra ...

Institute for Clinical Chemistry and Laboratory Medicine, University Hospital and Faculty of Medicine Carl Gustav Carus of TU Dresden, Dresden 01307, Germany ...

Department of Chemical and Petroleum Engineering, Center for Environmentally Beneficial Catalysis, and Wonderful Institute for Sustainable Engineering, University of Kansas, Lawrence, Kansas 66045, ...

Table 3 1 H NMR spectroscopic data (δ ... Fraction D (140 g) was subjected to a silica gel column, eluted with petroleum ether-acetone (10:1, 8:2, 7:3, 6:4, 1:1, V/V), to yield 12 fractions (D1–D12), ...

In particular, NMR-based metabolomics could play a role in: 1) long-term monitoring of AD evolution; 2) improving diagnosis and prognosis of AD on the base of their metabolic changes; 3) accelerate ...