Selective and Sensitive Detection of Cyanide Based on the Displacement Strategy Using a Water-Soluble Fluorescent Probe

Figure 5

(a) Fluorescence changes of C-GGH-Cu²⁺ (1.0 μmol/L) in the presence of various anions (15.0 μmol/L) in HEPES aqueous buffer (10 mmol/L, pH 10.0). (b) Fluorescence responses of C-GGH (10 μmol/L) at 478 nm in the presence of different anions (15.0 μmol/L) (low bars), followed by addition of CN⁻ (15.0 μmol/L) (high bars).

(a)

(b)