Figure 10From: Highly selective fluorescent chemosensor for Zn2+ derived from inorganic-organic hybrid magnetic core/shell Fe3O4@SiO2 nanoparticlesUV-Vis spectra. (A) Absorption spectra of (a) DTH-APTES (1.0 × 10-5 M), (b) DTH-APTES + Zn2+ (1.0 × 10-4 M), (c) DTH-Fe3O4@SiO2 (0.3 g/L), and (d) DTH-Fe3O4@SiO2 (0.3 g/L) + Zn2+ (1.0 × 10-4 M) in ethanol. (B) UV-Vis spectra of DTH-Fe3O4@SiO2 (0.3 g/L) in ethanol in the presence of different amounts of Zn2+ (0 to 240 μM).Back to article page