Figure 5.
Scanning Electron Microscopy (SEM) images of the AuNPb catalytic system. (a) 0.67 mmol/L HCl + 4.48 µmol/L HAuCl4 + 3.33 mmol/L H2O2 + 19 ng/mL AuNPb; (b) a + 1 µmol/L Hg2+.
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