Figure 5 | Scientific Reports

Figure 5

From: Development of highly sensitive metal-ion chemosensor and key-lock anticounterfeiting technology based on oxazolidine

Figure 5

(A) UV–vis and (B, C) fluorescence spectra (excited at 400 and 520 nm, respectively) of the OX2-Nitro aqueous solutions with a concentration of 0.0002 M containing metal ions with a concentration of 0.01 M, and photographs of (D) color change and (E) fluorescence emission of the OX2-Nitro/metal ions solutions under visible light and UV irradiation, respectively.

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