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. 2018 Aug 12;11(8):1416. doi: 10.3390/ma11081416

Figure 6.

Figure 6

27Al, 31P, and 19F NMR spectra of solution part of the starting precursor for AlPO4-CJ2 prior to heating showing signatures (red arrows) of PBUs, octahedral mixed fluoroaluminophosphates.