Fourier tickling for homonuclear decoupling in NMR

摘要

The invention concerns a method for high resolution NMR (=nuclear magnetic resonance) measurements comprising the application of excitation pulses and the acquisition of data points, whereby a dwell time Δt separates the acquisition of two consecutive data points, which is characterized in that one or more tickling rf (=radio frequency) pulses of duration τp are applied within each dwell time Δt, and that the average rf field amplitude of each of the tickling rf pulses approximately fulfills the condition 〈ω1〉 = ω1τp/Δt = πJ wherein J being the scalar J-coupling constant and ω1 = γB1 with γ being the gyromagnetic ratio and B1 being the strength of the magnetic component of each tickling rf pulse. This method is effective in decoupling homonuclear couplings.