Research Article
A Highly Sensitive and Selective Colorimetric Hg2+ Ion Probe Using Gold Nanoparticles Functionalized with Polyethyleneimine
Figure 5
Absorption ratios (A700/A514) of Hg2+-PEI-AuNPs as a function of (a) pH, (b) temperature, and (c) concentration of NaCl.
| (a) |
| (b) |
| (c) |