Main Title |
Quantitative 15N NMR Spectroscopy. |
Author |
Levy, George C. ;
Pehk, T. ;
Srinivasan, P. R. ;
|
CORP Author |
Florida State Univ., Tallahassee. Dept. of Chemistry.;Health Effects Research Lab., Research Triangle Park, NC. |
Year Published |
1980 |
Report Number |
EPA-600/J-80-380; |
Stock Number |
PB82-155250 |
Additional Subjects |
Nuclear magnetic resonance ;
Spin spin interactions ;
Spin lattice relaxation ;
Reprints ;
Isotopic labeling ;
Spin lattice interactions ;
Nitrogen 15 ;
Paramagnetic relaxation reagents
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB82-155250 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
6p |
Abstract |
Line intensities in 15N NMR spectra are strongly influenced by spin-lattice and spin-spin relaxation times, relaxation mechanisms and experimental conditions. Special care has to be taken in using 15N spectra for quantitative purposes. Quantitative aspects are discussed for the 15N NMR of molecules with different nitrogen functional groups and also mixtures of nitrogen-containing compounds. It is shown that, in general, quantitative data are obtainable from integration of 15N lines in proton decoupled 15N NMR spectra using NOE suppression. Addition of paramagnetic relaxation reagents (PARR) under controlled conditions is frequently needed to accomplish the experiment within reasonable time limits. |