Research Article

Solid Phase Extraction of Inorganic Mercury Using 5-Phenylazo-8-hydroxyquinoline and Determination by Cold Vapor Atomic Fluorescence Spectroscopy in Natural Water Samples

Figure 6

Elution recovery of Hg(II) adsorbed on 5Ph8HQ by column method using different types of eluents. Conditions: [Hg2+]: 2 ng mL−1, volume: 50 mL, pH: 4, and eluent volume: 10 mL. Bars represent standard deviation for two replicates.
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