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. 2022 Sep 10;71(4):795–808. doi: 10.1007/s00267-022-01716-6

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Fig. 3 — a pH solution effect on PCM adsorption and speciation curves for the PCM (V = 50 mL, T = 298 K, D_ads = 1 g L⁻¹, C₀ = 45 mg L⁻¹, t = 120 min); and b effect of adsorbent dosage on PCM adsorption (V = 50 mL, T = 298 K, pH = 3, C₀ = 45 mg L⁻¹, t = 120 min)