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. 2023 Jan 5;28(2):546. doi: 10.3390/molecules28020546

Figure 4.

Figure 4

Figure 4

Response surface plots for Zn, mg/L with respect to pH and V Na2CS3 dose, for constant time = 10 min (A), pH and time (min) for constant V Na2CS3 dose = 0.035 mL/L (B), and V Na2CS3 dose and time (min) for constant pH = 10 (C).