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. Author manuscript; available in PMC: 2015 May 1.
Published in final edited form as: Prog Nucl Magn Reson Spectrosc. 2014 Mar 7;79:14–47. doi: 10.1016/j.pnmrs.2014.02.001

Fig. 5.

Fig. 5

2D 23Na images obtained with the pulse sequences shown in (A) – the quadrupolar jump-and-return (QJR) sequence. (B) The signal is excited by a hard 90° pulse. (C) The QJR sequence with a delay of 2.5 ms was used to excite the signal. The phantom consists of two concentric tubes (3 mm and 5 mm od, respectively), the inner tube filled with Pf1 bacteriophage solution (fQ = 205 Hz) and an outer with 50 mM NaCl solution. Reproduced with permission from Ref. [109].