Highly Selective Hg (II) Ion Detection Based on Linear Blue-Shift of the Maximum Absorption Wavelength of Silver Nanoparticles
Figure 2
The scanning electron microscopy of AgNPs in the absence and presence of Hg (II) ion. Concentration: AgNPs: 6.5 × 10−5 mol/L; Hg (II) ion (from A to D, ×10−6 mol/L): 0, 2.0, 4.0, 6.0; HAc-NaAc buffer (pH 5.6).
