Evaluation of an Adsorbent Based on Agricultural Waste (Corn Cobs) for Removal of Tyrosine and Phenylalanine from Aqueous Solutions

Figure 3

Effect of contact time on Tyr adsorption by the prepared adsorbent: (a) variations in amount adsorbed and (b) variations in final concentration in comparison to Phe removal [9] (25°C; initial solution pH: 6; adsorbent dosage: 10 g·L⁻¹; initial Tyr concentration: ■: 20 mg L⁻¹; *: 30 mg L⁻¹; ▲: 50 mg L⁻¹;  ×75 mg L⁻¹; ●: 100 mg L⁻¹. Initial Phe concentration: □: 200 mg L⁻¹; △: 500 mg L⁻¹; ◯: 1000 mg L⁻¹).

(a)

(b)