The
chemical shift displacements found in the spectra of pyrimethanil/HP-[beta]-CD, when compared with free fungicide (guest), point out the occurrence of a complexation process that can be attributed to the influence of the guest (pyrimethanil) included in CD cavity.
The presence of a hydroxyl group at C-3" was indicated from the
chemical shift in the [sup.13]C NMR [[delta].sub.C] 69.7 (C-3") and the HREIMS data.
Table 3:
Chemical shift assignment of biosurfactant in 1H NMR.
Detecting and manipulating these signals with a computer provides a graph of frequency, sometimes called a
chemical shift, versus intensity, forming a characteristic series of peaks--the classic NMR spectrum.
Chemical shift imaging is the principal technique employed in the MR evaluation of adrenal lesions using in-and out-of-phase techniques, and exploits the presence of abundant intracellular lipid in adenomas that helps to distinguish them from non-adenomatous lesions.
(2008) compiled a heteronuclear single quantum coherence-based metabolite
chemical shift database that contains only NMR spectra of standard compounds measured under standardized conditions.
Chemical shift is a result of the chemical properties of materials inside the magnetic field.
The change in the
chemical shift upon halogen bonding was found to be the greatest on the alpha fluorine signals.
In addition, the PPAR[alpha]LBD binding interface on L-FABP is mapped using NMR
chemical shift perturbation experiments.
where [zeta]H is the
chemical shift of the protons on saturated carbon to be calculated; A is a constant with the values of 0.87, 1.20, and 1.55 for methyl, methylene.
Imaging studies can distinguish encapsulated fat (progressive nodular lipomatosis and multiple hereditary lipomas, hibernoma) from Madelung disease by means of fat suppression and
chemical shift imaging.