Research Article

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 7

Effect of amount of sorbent on the recovery of CV. Conditions: pH: 9, amount of CV: 50 μg L−1, sample volume: 25 mL, eluent: glacial acetic acid, and eluent volume: 1.0 mL.
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