Research Article

Fluorescein-Labeled Starch Maleate Nanoparticles as Sensitive Fluorescent Sensing Probes for Metal Ions

Figure 3

UV/Vis absorption of an aqueous suspension of free FITC and FISM nanoparticles with different concentrations of FITC in (a) ultra-pure water and (b) buffer solution of pH 9.
108359.fig.003a
(a)
108359.fig.003b
(b)