NMR Know-How

Homonuclear Broadband Decoupling

Homonuclear broadband decoupling of proton spectra is a challenging task since standard composite pulse decoupling (cpd) techniques cannot be applied. One possibility to achieve this decoupling are so-called pure shift or reset approaches. A new class of experiments uses a combination of small flip angle chirp pulses and a weak magnetic field gradient (PSYCHE, pure shift yielded by chirp excitation). In this application we discuss this experiment which shows improved sensitivity compared to similar methods.

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