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

Figure 2

Recovery percentage of metals as function of time in a single-metal solution. Conditions: volume: 200 mL, m(5Ph8HQ): 1 g, element optimized pH, and [M⁺]: 1 μg mL⁻¹.

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