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. Author manuscript; available in PMC: 2014 Sep 1.
Published in final edited form as: J Magn Reson Imaging. 2013 May 30;38(3):511–529. doi: 10.1002/jmri.24168

Figure 3.

Figure 3

Typical energy levels and corresponding NMR spectra of sodium nuclei in different environments. Four types of motionally narrowed SQ spectra are possible (a, b, c, and d). The type-a (crystal-like) and type-b (powder-like) spectra are of Na+ in aqueous suspensions of oriented and unoriented dodecyl sulfate micelles, respectively. The type-c (homogeneous, biexponential, super-lorentzian-like) spectrum is that of Na+ in an aqueous solution that has a high concentration of micelle-solubilized gramicidin channels. The type-d (liquid-like) spectrum is that of NaCl in H2O. From Rooney W. et al. NMR Biomed 4, 209–226, 1991. Reproduced by permission of Wiley-Blackwell.