| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an effective and speedy method for decoupling of homonuclear couplings. <P>SOLUTION: This invention concerns a method for high resolution NMR (nuclear magnetic resonance) measurements comprising the application of excitation pulses and the acquisition of data points. In a method for acquiring two consecutive data points separated by a dwell time Δt, one or more tickling RF (radio frequency) pulses of duration τ<SB POS="POST">p</SB>are applied within each dwell time Δt and the average RF field amplitude of each of the tickling RF pulses approximately fulfills the condition<ω<SB POS="POST">1</SB>>=ω<SB POS="POST">1</SB>τ<SB POS="POST">p</SB>/Δt=πJ, where J is a scalar J-coupling constant, γ in ω<SB POS="POST">1</SB>=γB<SB POS="POST">1</SB>is a gyromagnetic ratio, and B<SB POS="POST">1</SB>is the strength of a magnetic component of each tickling RF pulse. This method is effective in decoupling homonuclear couplings. <P>COPYRIGHT: (C)2013,JPO&INPIT |
