Several techniques enhance the resolution and sensitivity of solid state NMR:
- Magic Angle Spinning (MAS): This technique involves spinning the sample at a specific angle (54.7 degrees) to average out anisotropic interactions, leading to higher resolution spectra. - Cross-Polarization (CP): Enhances the signal of low-abundance nuclei by transferring polarization from abundant nuclei like ¹H. - Dipolar Recoupling: Techniques such as REDOR and TRAPDOR are used to reintroduce dipolar couplings, providing distance information between nuclei. - Dynamic Nuclear Polarization (DNP): Enhances sensitivity by transferring polarization from electrons to nuclei.