Characterization of Reactive Intermediates by Multinuclear Diffusion-Ordered NMR Spectroscopy (DOSY)

High Resolution Diffusion-Ordered Spectroscopy (HR-DOSY)

This application note demonstrates the utility of the DOSY package in the VnmrJ 3.1 software for both 2D and 3D HR-DOSY analysis of complex mixtures, by first elucidating the presence of two components in an epoxy mixture (2D), and then proving that a minority component in a protein mixture was in fact a smaller derivative of the major component (3D).

High Resolution Diffusion-Ordered Spectroscopy (HR-DOSY)

This application note demonstrates the utility of the DOSY package in the VnmrJ 3.1 software for both 2D and 3D HR-DOSY analysis of complex mixtures, by first elucidating the presence of two components in an epoxy mixture (2D), and then proving that a minority component in a protein mixture was in fact a smaller derivative of the major component (3D).

Single-scan 2D DOSY NMR spectroscopy.

Spatial encoding is a particular kind of spin manipulation that enables the acquisition of multidimensional NMR spectra within a single scan. This encoding has been shown to possess a general applicability and to enable the completion of arbitrary nD NMR acquisitions within a single transient. The present study explores its potential towards the acquisition of 2D DOSY spectra, where the indirec...

Diffusion Coefficient-Formula Weight Correlation Analysis via Diffusion-Ordered Nuclear Magnetic Resonance Spectroscopy (DOSY NMR) To Examine Acylglycerol Mixtures and Biodiesel Production

Biodiesel, fatty acid methyl esters derived from vegetable oils, is a well-established alternative to petroleum diesel. We have developed a rapid H diffusion-ordered nuclear magnetic resonance spectroscopy (DOSY NMR)method to resolve mixtures of mono-, di-, and triacyglycerols alongwith their methyl esters. Because of the differences in diffusion coefficients between the starting materials (tri...

NMR Spectroscopic Analyses of Anionic Reactive Intermediates