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In vivo 1H NMR spectroscopy of the human brain at 7 T
Publications associées (37)
Self-refocusing effect of 270 Deg Gaussian pulses: applications to selective two-dimensional exchange spectroscopy
David Lyndon Emsley, Geoffrey Bodenhausen
A soln. is presented to the problem of phase dispersion in the resultant magnetization for pulses used for high-resoln. NMR work by demonstrating how a Gaussian pulse having an on-resonance flip angle of 270 Deg has much improved phase properties over the ...
1989The characterization of networks of coupled spins by coherence transfer in nuclear magnetic resonance
A discussion with 8 refs. is given on the assignment of NMR spectra of complex systems, such as 1H or 13C spectra of macromols., which can be greatly facilitated by exploiting the phenomenon of coherence transfer. The topol. of the spin systems, i.e. the n ...
1986Exchange of two-spin order in nuclear magnetic resonance: separation of exchange and cross-relaxation processes
The measurement of the migration of longitudinal 2-spin order by 2-dimensional (2D) exchange spectroscopy or by selective 1-dimensional (1D) methods (2D or 1D zz-exchange spectroscopy) allows unambiguous differentiation between chem. exchange and cross-rel ...
1985Two-dimensional exchange difference spectroscopy: applications to indirect observation of quadrupolar relaxation
A novel type of difference spectroscopy is proposed to improve two-dimensional exchange spectroscopy by reducing diagonal peaks which are often dominant in complex cases such as in 2-dimensional nuclear Overhauser effect spectra of biopolymers. The diagona ...
1982Proton-coupled carbon-13 J spectra in the presence of strong coupling. II
Proton-coupled 13C NMR spectra were studied by a technique which involves Fourier transformation of spin echo modulation. When the protons are strongly coupled, the "proton flip" version of this expt. generates a new form of 13C spectrum which is quite d ...
1977High-resolution NMR in inhomogeneous magnetic fields
For high-resoln. 13C NMR spectroscopy under conditions of complete proton decoupling, gated decoupler and proton flip methods are described which demonstrate that heteronuclear J spectroscopy can provide fine structure information even in very inhomogeneou ...
1976