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. 2012 Feb 16;4(1):179–196. doi: 10.3390/pharmaceutics4010179

Table 1.

pH measurements during solubility and dissolution studies.

Formulation
pH measurement TMP free base TMP Aspartate TMP glutamate
Solubility study (Equilibrium) 7.7 ± 0.05 5.075 ± 0.06 5.2 ± 0.11
End of dissolution study 8.6 ± 0.07 5.37 ± 0.08 5.88 ± 0.05