Fig. 5.
From: Evaluation of anion exchange resin for sorption of selenium (IV) from aqueous solutions
a shaking time impact on the sorption percentage: b pseudo-first-order and c pseudo-second-order kinetic model for Se(IV) with concentration of 100 mg L−1, dosage of 0.10 g, volume of 5 mL, pH 3.0, and 25 °C from aqueous solutions.