Research Article

Two-Pulse Phase Modulation Based Decoupling Schemes for Removing Heteronuclear Spin Interactions in the NMR Spectroscopy of Isotropic Systems: An Analysis Using Experiments and Numerical Simulations

Figure 1

The profiles of (a) TPPM, (b) SWf-TPPM-4, (c) SWf-TPPM-5, (d) SWf-TPPM-6, (e) SWf-TPPM-7, and (f) SWf-TPPM-11 sequences. The pulse length, normalized with respect to the central pulse pair of various SWf-TPPM sequences, is plotted against the number of the TPPM blocks in the corresponding decoupling sequence. The ordinate denotes the multiplicative factors that determine the corresponding profile.
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