Fig. 6From: A Phenanthroline-Based Fluorescent Probe for Highly Selective Detection of Extreme Alkalinity (pH > 14) in Aqueous SolutionThe PL spectra of aqueous solution (3 mol/L OHˉ) (2 mL) of BMIP (1 mmol/L) after the addition of different volumes (0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, and 0.9 mL, respectively) of NaOH solution (3 mol/L)Back to article page