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. Author manuscript; available in PMC: 2016 Sep 25.
Published in final edited form as: Chem Commun (Camb). 2015 Sep 25;51(74):14119–14122. doi: 10.1039/c5cc05348j

Figure 5.

Figure 5

Five compartment phantom for imaging pH using 13C, 15N ACES and 13C,15N urea A) Phantom design incorporated 5 compartments with varying pH. B) 2D chemical shift imaging through the phantom. C) Representative voxel from position 2. D) Summary of calculated and measured pH values.