Intense and numerous satellite peaks caused by the dipolar field have been observed in COSY experiments performed in homogeneous magnetic fields on a concentrated sample (proton NMR at 600 MHz on a dilute solution of acetone in water). Radiation damping was made negligible by the use of a very...
Distinctive peaks in proton NMR spectrum of Asc-08007-1-1 DHPG.Carlos A. LafourcadeLonghua ZhangBradley E. Alger
Satellite Peak Relaxation.The simultaneous analysis of nuclear relaxation behaviour of 119Sn-1H and 117Sn-1H dipolar vectors from the proton spinlattice relaxation rates of the relative satellite peaks may yield a very accurate calculation of correlation times. The dipolar interaction between the proton...
PEPA detects the position of carbon label in isotopically enriched metabolites and quantifies fractional enrichment by indirect determination of 13C‐satellite peaks using 1D‐1H‐NMR spectra. In comparison with 13C‐NMR, TOCSY and HSQC, PEPA improves sensitivity, accelerates the elucidation of 13C ...
PEPA detects the position of carbon label in isotopically enriched metabolites and quantifies fractional enrichment by indirect determination of 13C‐satellite peaks using 1D‐1H‐NMR spectra. In comparison with 13C‐NMR, TOCSY and HSQC, PEPA improves sensitivity, accelerates the elucidation of 13C ...
PEPA detects the position of carbon label in isotopically enriched metabolites and quantifies fractional enrichment by indirect determination of 13C‐satellite peaks using 1D‐1H‐NMR spectra. In comparison with 13C‐NMR, TOCSY and HSQC, PEPA improves sensitivity, accelerates the elucidation of...
Quantification of proton signals in NMR and on-flow HPLC-NMR, and the resolution of overlapping peaks in a DAD-HPLC chromatogram by chemometrics methods for forensic toxicologyMohd Sukri Hassan
NMR data was compared with tissue homogenate contents and serum levels of biochemical parameters.*Results*: The quantitation of smaller NMR visible metabolites was feasible for both ex vivo NMR and in vivo MR spectroscopy. Ex vivo H-1 NMR and in vivo MRS metabolite characteristic peaks (disease/...
We propose a simple method to calculate and predict quadrupole relaxation enhancement (QRE) features in the spin-lattice nuclear magnetic relaxation dispersion (R1-NMRD) profile of protons (H) in solids. The only requirement is the knowledge of the nuclear quadrupole resonance (NQR) parameters of...
Also, the method can be used to extract NQR parameter, and thus structural information, from -NMRD profiles showing QRE features. In this article, we describe the calculation procedure and present examples of comparing the result to experimental -NMRD data of two different solid 209Bi-aryl ...