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. 2020 Apr 29;12(5):409. doi: 10.3390/pharmaceutics12050409

Figure 3.

Figure 3

Calculated response surfaces show the interaction of pH and Column temperature on (A) Fexofenadine HCl peak area, (B) Fexofenadine HCl retention time. (C) Tinidazole (IS) retention time and (D) desirability function results.