2,7-Dichlorofluorescein Hydrazide as a New Fluorescent Probe for Mercury Quantification: Application to Industrial Effluents and Polluted Water Samples

Figure 5

Fluorescence spectra of (a) Probe alone, (b) Probe + Fe²⁺, Fe³⁺, Pb²⁺, Cd²⁺, Ni²⁺, Hg⁺, Mn²⁺, Zn²⁺ (500 ng), (c) Probe + 500 ng Cu²⁺, (d) Probe + 20 ng Hg²⁺.