Fast Analysis of Water Samples for Trace Amount of Crystal Violet Dye Based on Solid Phase Extraction Using Nanoporous SBA-3 prior to Determination by Fiber Optic-Linear Array Detection Spectrophotometry
Figure 12
(a) Langmuir isotherm plots; (b) Freundlich isotherm plots for CV adsorption onto SBA-3 nanosorbent. Experimental conditions: sample solution, 25 mL; solution pH, 9; amount of adsorbent, 15 mg; contact time, 2 min and initial CV concentration of 50–550 mg L−1.
