A new method for suppressing the central transition in I=3/2 NMR spectra with a demonstration for 23Na in bovine articular cartilage.
The splitting and the lineshape of the satellite transitions of 23Na are measures of the residual quadrupolar interaction and its distribution, which are related to the degrees of order and binding of sodium in biological tissues. However, these transitions are often masked by the stronger signals of the central transition and the isotropic sodium ions. A way to suppress the central signals, while preserving the lineshape and the intensity of the satellites, is suggested and tested on a liquid crystal and on bovine articular cartilage.
Eliav
Uzi
U
School of Chemistry, Tel Aviv University, Ramat Aviv, Tel Aviv 69978, Israel.
Keinan-Adamsky
Keren
K
Navon
Gil
G
D000465:Algorithms; D000818:Animals; D016477:Artifacts; D002358:Cartilage, Articular / Q000737:chemistry*; D002417:Cattle; D005240:Feasibility Studies; D066298:In Vitro Techniques; D007719:Knee Joint / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D012815:Signal Processing, Computer-Assisted; D012975:Sodium Isotopes
D012975:Sodium Isotopes