Fig. 2From: Solid-Phase Spectrophotometric Analysis of 1-Naphthol Using Silica Functionalized with m-Diazophenylarsonic AcidDynamic adsorption isotherms (adsorption vs. concentration of phenolic compound (C i ) in the effluent) of (1) 1-naphthol, (2) 2-naphthol, and (3) resorcinol on SiO2 –DS. (SiO2 –DS) = 300 mg, C 0 = 0.5 mmol L−1, pH = 8, υ = 0.2 mL min−1 Back to article page