Highly Selective Hg (II) Ion Detection Based on Linear Blue-Shift of the Maximum Absorption Wavelength of Silver Nanoparticles
Figure 4
Effect of the AgNPs concentration. Concentration: AgNPs (×10−5 mol/L): 2.0, 3.5, 5.0, 6.5, 7.0, 7.5, 8.0, respectively; Hg (II) ion: 6.0 × 10−6 mol/L; HAc-NaAc buffer (pH 5.6). The inset picture displays color change with different concentration of AgNPs.
