Transition-Selective Pulses in Zero-Field Nuclear Magnetic Resonance.
J Phys Chem A
; 120(25): 4343-8, 2016 Jun 30.
Article
em En
| MEDLINE
| ID: mdl-27243376
ABSTRACT
We use low-amplitude, ultralow frequency pulses to drive nuclear spin transitions in zero and ultralow magnetic fields. In analogy to high-field NMR, a range of sophisticated experiments becomes available as these allow narrow-band excitation. As a first demonstration, pulses with excitation bandwidths 0.5-5 Hz are used for population redistribution, selective excitation, and coherence filtration. These methods are helpful when interpreting zero- and ultralow-field NMR spectra that contain a large number of transitions.
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Base de dados:
MEDLINE
Idioma:
En
Revista:
J Phys Chem A
Assunto da revista:
QUIMICA
Ano de publicação:
2016
Tipo de documento:
Article
País de afiliação:
Estados Unidos